993407772 has 72 divisors (see below), whose sum is σ = 2783424000. Its totient is φ = 274669920.

The previous prime is 993407759. The next prime is 993407773. The reversal of 993407772 is 277704399.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993407773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9022 + ... + 45477.

Almost surely, 2^993407772 is an apocalyptic number.

It is an amenable number.

993407772 is an abundant number, since it is smaller than the sum of its proper divisors (1790016228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

993407772 is a wasteful number, since it uses less digits than its factorization.

993407772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54551 (or 54542 counting only the distinct ones).

The product of its (nonzero) digits is 666792, while the sum is 48.

The square root of 993407772 is about 31518.3719757224. The cubic root of 993407772 is about 997.7977442967.

The spelling of 993407772 in words is "nine hundred ninety-three million, four hundred seven thousand, seven hundred seventy-two".