390876297 has 16 divisors (see below), whose sum is σ = 616160640. Its totient is φ = 215655552.

The previous prime is 390876281. The next prime is 390876323. The reversal of 390876297 is 792678093.

It is not a de Polignac number, because 390876297 - 2⁴ = 390876281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (390876217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320308 + ... + 321525.

It is an arithmetic number, because the mean of its divisors is an integer number (38510040).

Almost surely, 2^390876297 is an apocalyptic number.

It is an amenable number.

390876297 is a deficient number, since it is larger than the sum of its proper divisors (225284343).

390876297 is a wasteful number, since it uses less digits than its factorization.

390876297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641872.

The product of its (nonzero) digits is 1143072, while the sum is 51.

The square root of 390876297 is about 19770.5917210386. The cubic root of 390876297 is about 731.1611576192.

The spelling of 390876297 in words is "three hundred ninety million, eight hundred seventy-six thousand, two hundred ninety-seven".