390772707 has 8 divisors (see below), whose sum is σ = 561109584. Its totient is φ = 240475488.

The previous prime is 390772703. The next prime is 390772717. The reversal of 390772707 is 707277093.

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

It is not a de Polignac number, because 390772707 - 2² = 390772703 is a prime.

It is a super-2 number, since 2×390772707² = 305406617072215698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (390772703) 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, 5009868 + ... + 5009945.

It is an arithmetic number, because the mean of its divisors is an integer number (70138698).

Almost surely, 2^390772707 is an apocalyptic number.

390772707 is a deficient number, since it is larger than the sum of its proper divisors (170336877).

390772707 is a wasteful number, since it uses less digits than its factorization.

390772707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10019829.

The product of its (nonzero) digits is 129654, while the sum is 42.

The square root of 390772707 is about 19767.9717472481. The cubic root of 390772707 is about 731.0965611584.

The spelling of 390772707 in words is "three hundred ninety million, seven hundred seventy-two thousand, seven hundred seven".