390715297 has 8 divisors (see below), whose sum is σ = 470033600. Its totient is φ = 317272464.

The previous prime is 390715271. The next prime is 390715307. The reversal of 390715297 is 792517093.

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 390715297 - 2²⁷ = 256497569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390715397) 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, 1468722 + ... + 1468987.

It is an arithmetic number, because the mean of its divisors is an integer number (58754200).

Almost surely, 2^390715297 is an apocalyptic number.

It is an amenable number.

390715297 is a deficient number, since it is larger than the sum of its proper divisors (79318303).

390715297 is a wasteful number, since it uses less digits than its factorization.

390715297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2937735.

The product of its (nonzero) digits is 119070, while the sum is 43.

The square root of 390715297 is about 19766.5195975417. The cubic root of 390715297 is about 731.0607566200.

The spelling of 390715297 in words is "three hundred ninety million, seven hundred fifteen thousand, two hundred ninety-seven".