39397617 has 48 divisors (see below), whose sum is σ = 68819520. Its totient is φ = 22208256.

The previous prime is 39397613. The next prime is 39397639. The reversal of 39397617 is 71679393.

It is not a de Polignac number, because 39397617 - 2² = 39397613 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39397613) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 128178 + ... + 128484.

It is an arithmetic number, because the mean of its divisors is an integer number (1433740).

Almost surely, 2^39397617 is an apocalyptic number.

It is an amenable number.

39397617 is a deficient number, since it is larger than the sum of its proper divisors (29421903).

39397617 is a wasteful number, since it uses less digits than its factorization.

39397617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 414 counting only the distinct ones).

The product of its digits is 214326, while the sum is 45.

The square root of 39397617 is about 6276.7521059860. The cubic root of 39397617 is about 340.2697311718.

The spelling of 39397617 in words is "thirty-nine million, three hundred ninety-seven thousand, six hundred seventeen".