39745937 has 16 divisors (see below), whose sum is σ = 51154944. Its totient is φ = 29970000.

The previous prime is 39745913. The next prime is 39746009. The reversal of 39745937 is 73954793.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 39745937 - 2⁶ = 39745873 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39745891 and 39745900.

It is not an unprimeable number, because it can be changed into a prime (39747937) 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, 5939 + ... + 10712.

It is an arithmetic number, because the mean of its divisors is an integer number (3197184).

Almost surely, 2^39745937 is an apocalyptic number.

It is an amenable number.

39745937 is a deficient number, since it is larger than the sum of its proper divisors (11409007).

39745937 is a wasteful number, since it uses less digits than its factorization.

39745937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16700.

The product of its digits is 714420, while the sum is 47.

The square root of 39745937 is about 6304.4378813658. The cubic root of 39745937 is about 341.2695815444.

Subtracting 39745937 from its reverse (73954793), we obtain a triangular number (34208856 = T₈₂₇₁).

The spelling of 39745937 in words is "thirty-nine million, seven hundred forty-five thousand, nine hundred thirty-seven".