213364724 has 6 divisors (see below), whose sum is σ = 373388274. Its totient is φ = 106682360.

The previous prime is 213364717. The next prime is 213364733. The reversal of 213364724 is 427463312.

It can be written as a sum of positive squares in only one way, i.e., 148401124 + 64963600 = 12182^2 + 8060^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26670587 + ... + 26670594.

It is an arithmetic number, because the mean of its divisors is an integer number (62231379).

Almost surely, 2^213364724 is an apocalyptic number.

It is an amenable number.

213364724 is a deficient number, since it is larger than the sum of its proper divisors (160023550).

213364724 is a wasteful number, since it uses less digits than its factorization.

213364724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53341185 (or 53341183 counting only the distinct ones).

The product of its digits is 24192, while the sum is 32.

The square root of 213364724 is about 14607.0094132920. The cubic root of 213364724 is about 597.5499385792.

The spelling of 213364724 in words is "two hundred thirteen million, three hundred sixty-four thousand, seven hundred twenty-four".