213676398 has 48 divisors (see below), whose sum is σ = 499655520. Its totient is φ = 65604672.

The previous prime is 213676391. The next prime is 213676399. The reversal of 213676398 is 893676312.

213676398 is a `hidden beast` number, since 2 + 1 + 3 + 6 + 7 + 639 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213676391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173248 + ... + 174476.

It is an arithmetic number, because the mean of its divisors is an integer number (10409490).

Almost surely, 2^213676398 is an apocalyptic number.

213676398 is an abundant number, since it is smaller than the sum of its proper divisors (285979122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213676398 is a wasteful number, since it uses less digits than its factorization.

213676398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993 (or 1990 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 213676398 is about 14617.6741652015. The cubic root of 213676398 is about 597.8407554262.

The spelling of 213676398 in words is "two hundred thirteen million, six hundred seventy-six thousand, three hundred ninety-eight".