392385117 has 4 divisors (see below), whose sum is σ = 523180160. Its totient is φ = 261590076.

The previous prime is 392385107. The next prime is 392385137. The reversal of 392385117 is 711583293.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 711583293 = 3 ⋅237194431.

It is not a de Polignac number, because 392385117 - 2⁶ = 392385053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392385107) 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, 65397517 + ... + 65397522.

It is an arithmetic number, because the mean of its divisors is an integer number (130795040).

Almost surely, 2^392385117 is an apocalyptic number.

It is an amenable number.

392385117 is a deficient number, since it is larger than the sum of its proper divisors (130795043).

392385117 is a wasteful number, since it uses less digits than its factorization.

392385117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130795042.

The product of its digits is 45360, while the sum is 39.

The square root of 392385117 is about 19808.7131586078. The cubic root of 392385117 is about 732.1007337705.

The spelling of 392385117 in words is "three hundred ninety-two million, three hundred eighty-five thousand, one hundred seventeen".