3925314621 has 16 divisors (see below), whose sum is σ = 5957118720. Its totient is φ = 2553049440.

The previous prime is 3925314607. The next prime is 3925314667. The reversal of 3925314621 is 1264135293.

3925314621 is a `hidden beast` number, since 3 + 9 + 25 + 3 + 1 + 4 + 621 = 666.

It is not a de Polignac number, because 3925314621 - 2³¹ = 1777830973 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3925314221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1771845 + ... + 1774058.

It is an arithmetic number, because the mean of its divisors is an integer number (372319920).

Almost surely, 2^3925314621 is an apocalyptic number.

It is an amenable number.

3925314621 is a deficient number, since it is larger than the sum of its proper divisors (2031804099).

3925314621 is a wasteful number, since it uses less digits than its factorization.

3925314621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3545953 (or 3545947 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 3925314621 is about 62652.3313293288. The cubic root of 3925314621 is about 1577.4592799600.

The spelling of 3925314621 in words is "three billion, nine hundred twenty-five million, three hundred fourteen thousand, six hundred twenty-one".