213446964 has 12 divisors (see below), whose sum is σ = 498042944. Its totient is φ = 71148984.

The previous prime is 213446957. The next prime is 213446993. The reversal of 213446964 is 469644312.

213446964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8893612 + ... + 8893635.

Almost surely, 2^213446964 is an apocalyptic number.

It is an amenable number.

213446964 is an abundant number, since it is smaller than the sum of its proper divisors (284595980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213446964 is a wasteful number, since it uses less digits than its factorization.

213446964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17787254 (or 17787252 counting only the distinct ones).

The product of its digits is 124416, while the sum is 39.

The square root of 213446964 is about 14609.8242289221. The cubic root of 213446964 is about 597.6267025876.

The spelling of 213446964 in words is "two hundred thirteen million, four hundred forty-six thousand, nine hundred sixty-four".