393161307 has 24 divisors (see below), whose sum is σ = 658522368. Its totient is φ = 204238320.

The previous prime is 393161299. The next prime is 393161311. The reversal of 393161307 is 703161393.

It is not a de Polignac number, because 393161307 - 2³ = 393161299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (393161347) 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, 74823 + ... + 79904.

It is an arithmetic number, because the mean of its divisors is an integer number (27438432).

Almost surely, 2^393161307 is an apocalyptic number.

393161307 is a deficient number, since it is larger than the sum of its proper divisors (265361061).

393161307 is a wasteful number, since it uses less digits than its factorization.

393161307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154759 (or 154748 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 33.

The square root of 393161307 is about 19828.2956151052. The cubic root of 393161307 is about 732.5831467234.

The spelling of 393161307 in words is "three hundred ninety-three million, one hundred sixty-one thousand, three hundred seven".