392474881 has 2 divisors, whose sum is σ = 392474882. Its totient is φ = 392474880.

The previous prime is 392474857. The next prime is 392474891. The reversal of 392474881 is 188474293.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 392396481 + 78400 = 19809^2 + 280^2 .

It is a cyclic number.

It is not a de Polignac number, because 392474881 - 2¹³ = 392466689 is a prime.

It is a super-3 number, since 3×392474881³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (392474851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196237440 + 196237441.

It is an arithmetic number, because the mean of its divisors is an integer number (196237441).

Almost surely, 2^392474881 is an apocalyptic number.

It is an amenable number.

392474881 is a deficient number, since it is larger than the sum of its proper divisors (1).

392474881 is an equidigital number, since it uses as much as digits as its factorization.

392474881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 46.

The square root of 392474881 is about 19810.9787996454. The cubic root of 392474881 is about 732.1565558671.

The spelling of 392474881 in words is "three hundred ninety-two million, four hundred seventy-four thousand, eight hundred eighty-one".