213463864 has 8 divisors (see below), whose sum is σ = 400244760. Its totient is φ = 106731928.

The previous prime is 213463853. The next prime is 213463871. The reversal of 213463864 is 468364312.

213463864 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 (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13341484 + ... + 13341499.

It is an arithmetic number, because the mean of its divisors is an integer number (50030595).

Almost surely, 2^213463864 is an apocalyptic number.

It is an amenable number.

213463864 is a deficient number, since it is larger than the sum of its proper divisors (186780896).

213463864 is a wasteful number, since it uses less digits than its factorization.

213463864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26682989 (or 26682985 counting only the distinct ones).

The product of its digits is 82944, while the sum is 37.

The square root of 213463864 is about 14610.4025954113. The cubic root of 213463864 is about 597.6424748502.

The spelling of 213463864 in words is "two hundred thirteen million, four hundred sixty-three thousand, eight hundred sixty-four".