386990877 has 48 divisors (see below), whose sum is σ = 668787840. Its totient is φ = 197059968.

The previous prime is 386990843. The next prime is 386990959. The reversal of 386990877 is 778099683.

It is not a de Polignac number, because 386990877 - 2⁷ = 386990749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386990827) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51928 + ... + 58910.

It is an arithmetic number, because the mean of its divisors is an integer number (13933080).

Almost surely, 2^386990877 is an apocalyptic number.

It is an amenable number.

386990877 is a deficient number, since it is larger than the sum of its proper divisors (281796963).

386990877 is a wasteful number, since it uses less digits than its factorization.

386990877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7042 (or 7035 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 57.

The square root of 386990877 is about 19672.0836974633. The cubic root of 386990877 is about 728.7304367450.

The spelling of 386990877 in words is "three hundred eighty-six million, nine hundred ninety thousand, eight hundred seventy-seven".