396823877 has 12 divisors (see below), whose sum is σ = 425664096. Its totient is φ = 369827520.

The previous prime is 396823859. The next prime is 396823939. The reversal of 396823877 is 778328693.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-396823877 is a prime.

It is a super-2 number, since 2×396823877² = 314938378714622258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396823837) 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, 23102 + ... + 36432.

It is an arithmetic number, because the mean of its divisors is an integer number (35472008).

Almost surely, 2^396823877 is an apocalyptic number.

It is an amenable number.

396823877 is a deficient number, since it is larger than the sum of its proper divisors (28840219).

396823877 is a wasteful number, since it uses less digits than its factorization.

396823877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13468 (or 13451 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 53.

The square root of 396823877 is about 19920.4386748887. The cubic root of 396823877 is about 734.8509590283.

The spelling of 396823877 in words is "three hundred ninety-six million, eight hundred twenty-three thousand, eight hundred seventy-seven".