39746925 has 36 divisors (see below), whose sum is σ = 71584084. Its totient is φ = 21081600.

The previous prime is 39746897. The next prime is 39746939. The reversal of 39746925 is 52964793.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3674889 + 36072036 = 1917^2 + 6006^2 .

It is not a de Polignac number, because 39746925 - 2⁵ = 39746893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 53859 + ... + 54591.

Almost surely, 2^39746925 is an apocalyptic number.

It is an amenable number.

39746925 is a deficient number, since it is larger than the sum of its proper divisors (31837159).

39746925 is a wasteful number, since it uses less digits than its factorization.

39746925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990 (or 982 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 39746925 is about 6304.5162383802. The cubic root of 39746925 is about 341.2724092678.

The spelling of 39746925 in words is "thirty-nine million, seven hundred forty-six thousand, nine hundred twenty-five".