390479927 has 4 divisors (see below), whose sum is σ = 391412280. Its totient is φ = 389547576.

The previous prime is 390479923. The next prime is 390479933. The reversal of 390479927 is 729974093.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 390479927 - 2² = 390479923 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390479923) 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 3 ways as a sum of consecutive naturals, for example, 465548 + ... + 466385.

It is an arithmetic number, because the mean of its divisors is an integer number (97853070).

Almost surely, 2^390479927 is an apocalyptic number.

390479927 is a deficient number, since it is larger than the sum of its proper divisors (932353).

390479927 is an equidigital number, since it uses as much as digits as its factorization.

390479927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932352.

The product of its (nonzero) digits is 857304, while the sum is 50.

The square root of 390479927 is about 19760.5649463774. The cubic root of 390479927 is about 730.9139281959.

The spelling of 390479927 in words is "three hundred ninety million, four hundred seventy-nine thousand, nine hundred twenty-seven".