213564604 has 24 divisors (see below), whose sum is σ = 410659200. Its totient is φ = 96373680.

The previous prime is 213564587. The next prime is 213564607. The reversal of 213564604 is 406465312.

213564604 is an esthetic number in base 16, because in such base its adjacent digits differ by 1.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213564607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11344 + ... + 23575.

It is an arithmetic number, because the mean of its divisors is an integer number (17110800).

Almost surely, 2^213564604 is an apocalyptic number.

It is an amenable number.

213564604 is a deficient number, since it is larger than the sum of its proper divisors (197094596).

213564604 is a wasteful number, since it uses less digits than its factorization.

213564604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35073 (or 35071 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 213564604 is about 14613.8497323601. The cubic root of 213564604 is about 597.7364752011.

The spelling of 213564604 in words is "two hundred thirteen million, five hundred sixty-four thousand, six hundred four".