393248079 has 36 divisors (see below), whose sum is σ = 664232400. Its totient is φ = 223534080.

The previous prime is 393248059. The next prime is 393248087. The reversal of 393248079 is 970842393.

It is a happy number.

It is not a de Polignac number, because 393248079 - 2⁵ = 393248047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393248059) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 85519 + ... + 89999.

It is an arithmetic number, because the mean of its divisors is an integer number (18450900).

Almost surely, 2^393248079 is an apocalyptic number.

393248079 is a deficient number, since it is larger than the sum of its proper divisors (270984321).

393248079 is a wasteful number, since it uses less digits than its factorization.

393248079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4700 (or 4690 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 393248079 is about 19830.4835795802. The cubic root of 393248079 is about 732.6370372663.

The spelling of 393248079 in words is "three hundred ninety-three million, two hundred forty-eight thousand, seventy-nine".