213690396 has 24 divisors (see below), whose sum is σ = 499000320. Its totient is φ = 71174512.

The previous prime is 213690383. The next prime is 213690413. The reversal of 213690396 is 693096312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10885 + ... + 23363.

It is an arithmetic number, because the mean of its divisors is an integer number (20791680).

Almost surely, 2^213690396 is an apocalyptic number.

It is an amenable number.

213690396 is an abundant number, since it is smaller than the sum of its proper divisors (285309924).

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

213690396 is a wasteful number, since it uses less digits than its factorization.

213690396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13913 (or 13911 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 213690396 is about 14618.1529613012. The cubic root of 213690396 is about 597.8538100456.

The spelling of 213690396 in words is "two hundred thirteen million, six hundred ninety thousand, three hundred ninety-six".