867540664 has 16 divisors (see below), whose sum is σ = 1661248800. Its totient is φ = 424540992.

The previous prime is 867540659. The next prime is 867540671. The reversal of 867540664 is 466045768.

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, 1153269 + ... + 1154020.

It is an arithmetic number, because the mean of its divisors is an integer number (103828050).

Almost surely, 2^867540664 is an apocalyptic number.

It is an amenable number.

867540664 is a deficient number, since it is larger than the sum of its proper divisors (793708136).

867540664 is a wasteful number, since it uses less digits than its factorization.

867540664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307342 (or 2307338 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The square root of 867540664 is about 29454.0432538557. The cubic root of 867540664 is about 953.7398889743.

The spelling of 867540664 in words is "eight hundred sixty-seven million, five hundred forty thousand, six hundred sixty-four".