390977 has 8 divisors (see below), whose sum is σ = 414720. Its totient is φ = 367840.

The previous prime is 390967. The next prime is 390989. The reversal of 390977 is 779093.

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 390977 - 2⁴ = 390961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1952 + ... + 2142.

It is an arithmetic number, because the mean of its divisors is an integer number (51840).

2³⁹⁰⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

390977 is a deficient number, since it is larger than the sum of its proper divisors (23743).

390977 is a wasteful number, since it uses less digits than its factorization.

390977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303.

The product of its (nonzero) digits is 11907, while the sum is 35.

The square root of 390977 is about 625.2815365897. The cubic root of 390977 is about 73.1223942871.

The spelling of 390977 in words is "three hundred ninety thousand, nine hundred seventy-seven".