3921925 has 24 divisors (see below), whose sum is σ = 5652416. Its totient is φ = 2643840.

The previous prime is 3921919. The next prime is 3921941. The reversal of 3921925 is 5291293.

3921925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3921925 - 2⁵ = 3921893 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12622 + ... + 12928.

Almost surely, 2^3921925 is an apocalyptic number.

3921925 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3921925 is a deficient number, since it is larger than the sum of its proper divisors (1730491).

3921925 is a wasteful number, since it uses less digits than its factorization.

3921925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 392 counting only the distinct ones).

The product of its digits is 4860, while the sum is 31.

The square root of 3921925 is about 1980.3850635672. The cubic root of 3921925 is about 157.7005088857.

The spelling of 3921925 in words is "three million, nine hundred twenty-one thousand, nine hundred twenty-five".