39397925 has 72 divisors (see below), whose sum is σ = 63954240. Its totient is φ = 23500800.

The previous prime is 39397913. The next prime is 39397949. The reversal of 39397925 is 52979393.

It is not a de Polignac number, because 39397925 - 2⁶ = 39397861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39397925.

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 71 ways as a sum of consecutive naturals, for example, 960905 + ... + 960945.

Almost surely, 2^39397925 is an apocalyptic number.

39397925 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

39397925 is a deficient number, since it is larger than the sum of its proper divisors (24556315).

39397925 is a wasteful number, since it uses less digits than its factorization.

39397925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 89 counting only the distinct ones).

The product of its digits is 459270, while the sum is 47.

The square root of 39397925 is about 6276.7766409201. The cubic root of 39397925 is about 340.2706178820.

The spelling of 39397925 in words is "thirty-nine million, three hundred ninety-seven thousand, nine hundred twenty-five".