3753724321 has 4 divisors (see below), whose sum is σ = 3974531652. Its totient is φ = 3532916992.

The previous prime is 3753724307. The next prime is 3753724349. The reversal of 3753724321 is 1234273573.

3753724321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2034461025 + 1719263296 = 45105^2 + 41464^2 .

It is a cyclic number.

It is not a de Polignac number, because 3753724321 - 2⁷ = 3753724193 is a prime.

It is a super-2 number, since 2×3753724321² = 28180892556133822082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3753724391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110403640 + ... + 110403673.

It is an arithmetic number, because the mean of its divisors is an integer number (993632913).

Almost surely, 2^3753724321 is an apocalyptic number.

It is an amenable number.

3753724321 is a deficient number, since it is larger than the sum of its proper divisors (220807331).

3753724321 is a wasteful number, since it uses less digits than its factorization.

3753724321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220807330.

The product of its digits is 105840, while the sum is 37.

The square root of 3753724321 is about 61267.6449767738. The cubic root of 3753724321 is about 1554.1304086372.

Adding to 3753724321 its reverse (1234273573), we get a palindrome (4987997894).

The spelling of 3753724321 in words is "three billion, seven hundred fifty-three million, seven hundred twenty-four thousand, three hundred twenty-one".