393331065 has 32 divisors (see below), whose sum is σ = 667729920. Its totient is φ = 197152704.

The previous prime is 393331063. The next prime is 393331129. The reversal of 393331065 is 560133393.

It is not a de Polignac number, because 393331065 - 2¹ = 393331063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (393331063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30762 + ... + 41628.

It is an arithmetic number, because the mean of its divisors is an integer number (20866560).

Almost surely, 2^393331065 is an apocalyptic number.

It is an amenable number.

393331065 is a deficient number, since it is larger than the sum of its proper divisors (274398855).

393331065 is a wasteful number, since it uses less digits than its factorization.

393331065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11021.

The product of its (nonzero) digits is 21870, while the sum is 33.

The square root of 393331065 is about 19832.5758538824. The cubic root of 393331065 is about 732.6885690636.

The spelling of 393331065 in words is "three hundred ninety-three million, three hundred thirty-one thousand, sixty-five".