392374091 has 2 divisors, whose sum is σ = 392374092. Its totient is φ = 392374090.

The previous prime is 392374079. The next prime is 392374163. The reversal of 392374091 is 190473293.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-392374091 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (392374391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196187045 + 196187046.

It is an arithmetic number, because the mean of its divisors is an integer number (196187046).

Almost surely, 2^392374091 is an apocalyptic number.

392374091 is a deficient number, since it is larger than the sum of its proper divisors (1).

392374091 is an equidigital number, since it uses as much as digits as its factorization.

392374091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 392374091 is about 19808.4348447827. The cubic root of 392374091 is about 732.0938763763.

The spelling of 392374091 in words is "three hundred ninety-two million, three hundred seventy-four thousand, ninety-one".