993231772 has 24 divisors (see below), whose sum is σ = 1873350752. Its totient is φ = 458049600.

The previous prime is 993231763. The next prime is 993231773. The reversal of 993231772 is 277132399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993231773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64897 + ... + 78727.

Almost surely, 2^993231772 is an apocalyptic number.

It is an amenable number.

993231772 is a deficient number, since it is larger than the sum of its proper divisors (880118980).

993231772 is a wasteful number, since it uses less digits than its factorization.

993231772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15229 (or 15227 counting only the distinct ones).

The product of its digits is 142884, while the sum is 43.

The square root of 993231772 is about 31515.5798296652. The cubic root of 993231772 is about 997.7388148957.

The spelling of 993231772 in words is "nine hundred ninety-three million, two hundred thirty-one thousand, seven hundred seventy-two".