393100772 has 12 divisors (see below), whose sum is σ = 689571120. Its totient is φ = 196080456.

The previous prime is 393100759. The next prime is 393100777. The reversal of 393100772 is 277001393.

It is not an unprimeable number, because it can be changed into a prime (393100777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115598 + ... + 118949.

It is an arithmetic number, because the mean of its divisors is an integer number (57464260).

Almost surely, 2^393100772 is an apocalyptic number.

It is an amenable number.

393100772 is a deficient number, since it is larger than the sum of its proper divisors (296470348).

393100772 is a wasteful number, since it uses less digits than its factorization.

393100772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234970 (or 234968 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 393100772 is about 19826.7690761758. The cubic root of 393100772 is about 732.5455462133.

The spelling of 393100772 in words is "three hundred ninety-three million, one hundred thousand, seven hundred seventy-two".