3772421 has 8 divisors (see below), whose sum is σ = 3949824. Its totient is φ = 3598560.

The previous prime is 3772397. The next prime is 3772459. The reversal of 3772421 is 1242773.

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 3772421 - 2¹⁴ = 3756037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3772121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1430 + ... + 3096.

It is an arithmetic number, because the mean of its divisors is an integer number (493728).

Almost surely, 2^3772421 is an apocalyptic number.

3772421 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3772421 is a deficient number, since it is larger than the sum of its proper divisors (177403).

3772421 is a wasteful number, since it uses less digits than its factorization.

3772421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771.

The product of its digits is 2352, while the sum is 26.

The square root of 3772421 is about 1942.2721230559. The cubic root of 3772421 is about 155.6706425158.

Adding to 3772421 its product of digits (2352), we get a palindrome (3774773).

The spelling of 3772421 in words is "three million, seven hundred seventy-two thousand, four hundred twenty-one".