993133864 has 8 divisors (see below), whose sum is σ = 1862126010. Its totient is φ = 496566928.

The previous prime is 993133837. The next prime is 993133873. The reversal of 993133864 is 468331399.

It can be written as a sum of positive squares in only one way, i.e., 747584964 + 245548900 = 27342^2 + 15670^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62070859 + ... + 62070874.

Almost surely, 2^993133864 is an apocalyptic number.

It is an amenable number.

993133864 is a deficient number, since it is larger than the sum of its proper divisors (868992146).

993133864 is a wasteful number, since it uses less digits than its factorization.

993133864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124141739 (or 124141735 counting only the distinct ones).

The product of its digits is 419904, while the sum is 46.

The square root of 993133864 is about 31514.0264644174. The cubic root of 993133864 is about 997.7060297242.

The spelling of 993133864 in words is "nine hundred ninety-three million, one hundred thirty-three thousand, eight hundred sixty-four".