64464213 has 32 divisors (see below), whose sum is σ = 97044480. Its totient is φ = 37727360.

The previous prime is 64464209. The next prime is 64464217. The reversal of 64464213 is 31246446.

It is an interprime number because it is at equal distance from previous prime (64464209) and next prime (64464217).

It is not a de Polignac number, because 64464213 - 2² = 64464209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64464217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137806 + ... + 138272.

It is an arithmetic number, because the mean of its divisors is an integer number (3032640).

Almost surely, 2^64464213 is an apocalyptic number.

It is an amenable number.

64464213 is a deficient number, since it is larger than the sum of its proper divisors (32580267).

64464213 is a wasteful number, since it uses less digits than its factorization.

64464213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617.

The product of its digits is 13824, while the sum is 30.

The square root of 64464213 is about 8028.9608916721. The cubic root of 64464213 is about 400.9647815373.

The spelling of 64464213 in words is "sixty-four million, four hundred sixty-four thousand, two hundred thirteen".