3432547721 has 8 divisors (see below), whose sum is σ = 3467756424. Its totient is φ = 3397363200.

The previous prime is 3432547711. The next prime is 3432547747. The reversal of 3432547721 is 1277452343.

It can be written as a sum of positive squares in 4 ways, for example, as 199374400 + 3233173321 = 14120^2 + 56861^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3432547721 - 2²² = 3428353417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3432547711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460601 + ... + 467993.

It is an arithmetic number, because the mean of its divisors is an integer number (433469553).

Almost surely, 2^3432547721 is an apocalyptic number.

It is an amenable number.

3432547721 is a deficient number, since it is larger than the sum of its proper divisors (35208703).

3432547721 is a wasteful number, since it uses less digits than its factorization.

3432547721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12091.

The product of its digits is 141120, while the sum is 38.

The square root of 3432547721 is about 58587.9485986666. The cubic root of 3432547721 is about 1508.4775850670.

The spelling of 3432547721 in words is "three billion, four hundred thirty-two million, five hundred forty-seven thousand, seven hundred twenty-one".