390477663 has 12 divisors (see below), whose sum is σ = 583472760. Its totient is φ = 251341776.

The previous prime is 390477649. The next prime is 390477677. The reversal of 390477663 is 366774093.

It is an interprime number because it is at equal distance from previous prime (390477649) and next prime (390477677).

It is not a de Polignac number, because 390477663 - 2⁵ = 390477631 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390477623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 747781 + ... + 748302.

It is an arithmetic number, because the mean of its divisors is an integer number (48622730).

Almost surely, 2^390477663 is an apocalyptic number.

390477663 is a deficient number, since it is larger than the sum of its proper divisors (192995097).

390477663 is a wasteful number, since it uses less digits than its factorization.

390477663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496118 (or 1496115 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 45.

The square root of 390477663 is about 19760.5076604828. The cubic root of 390477663 is about 730.9125155818.

The spelling of 390477663 in words is "three hundred ninety million, four hundred seventy-seven thousand, six hundred sixty-three".