213696634 has 16 divisors (see below), whose sum is σ = 339478848. Its totient is φ = 100675872.

The previous prime is 213696619. The next prime is 213696683. The reversal of 213696634 is 436696312.

213696634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31587 + ... + 37750.

It is an arithmetic number, because the mean of its divisors is an integer number (21217428).

Almost surely, 2^213696634 is an apocalyptic number.

213696634 is a deficient number, since it is larger than the sum of its proper divisors (125782214).

213696634 is a wasteful number, since it uses less digits than its factorization.

213696634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69429.

The product of its digits is 139968, while the sum is 40.

The square root of 213696634 is about 14618.3663245932. The cubic root of 213696634 is about 597.8596274585.

The spelling of 213696634 in words is "two hundred thirteen million, six hundred ninety-six thousand, six hundred thirty-four".