213723064 has 32 divisors (see below), whose sum is σ = 409449600. Its totient is φ = 104559840.

The previous prime is 213723019. The next prime is 213723071. The reversal of 213723064 is 460327312.

213723064 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 77599 + ... + 80305.

It is an arithmetic number, because the mean of its divisors is an integer number (12795300).

Almost surely, 2^213723064 is an apocalyptic number.

It is an amenable number.

213723064 is a deficient number, since it is larger than the sum of its proper divisors (195726536).

213723064 is a wasteful number, since it uses less digits than its factorization.

213723064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923 (or 2919 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 213723064 is about 14619.2702964272. The cubic root of 213723064 is about 597.8842742023.

The spelling of 213723064 in words is "two hundred thirteen million, seven hundred twenty-three thousand, sixty-four".