39115397 has 8 divisors (see below), whose sum is σ = 40450560. Its totient is φ = 37784880.

The previous prime is 39115393. The next prime is 39115399. The reversal of 39115397 is 79351193.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39115397 - 2² = 39115393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39115397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39115393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27803 + ... + 29175.

It is an arithmetic number, because the mean of its divisors is an integer number (5056320).

Almost surely, 2^39115397 is an apocalyptic number.

It is an amenable number.

39115397 is a deficient number, since it is larger than the sum of its proper divisors (1335163).

39115397 is a wasteful number, since it uses less digits than its factorization.

39115397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323.

The product of its digits is 25515, while the sum is 38.

The square root of 39115397 is about 6254.2303283458. The cubic root of 39115397 is about 339.4552898451.

The spelling of 39115397 in words is "thirty-nine million, one hundred fifteen thousand, three hundred ninety-seven".