862668988 has 12 divisors (see below), whose sum is σ = 1510729920. Its totient is φ = 431031872.

The previous prime is 862668971. The next prime is 862668991. The reversal of 862668988 is 889866268.

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, 69181 + ... + 80692.

It is an arithmetic number, because the mean of its divisors is an integer number (125894160).

Almost surely, 2^862668988 is an apocalyptic number.

It is an amenable number.

862668988 is a deficient number, since it is larger than the sum of its proper divisors (648060932).

862668988 is a wasteful number, since it uses less digits than its factorization.

862668988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151316 (or 151314 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 61.

The square root of 862668988 is about 29371.2272130396. The cubic root of 862668988 is about 951.9512942033.

The spelling of 862668988 in words is "eight hundred sixty-two million, six hundred sixty-eight thousand, nine hundred eighty-eight".