392724049 has 2 divisors, whose sum is σ = 392724050. Its totient is φ = 392724048.

The previous prime is 392724043. The next prime is 392724071. The reversal of 392724049 is 940427293.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 276623424 + 116100625 = 16632^2 + 10775^2 .

It is a cyclic number.

It is not a de Polignac number, because 392724049 - 2⁷ = 392723921 is a prime.

It is equal to p_20968942 and since 392724049 and 20968942 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (392724043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196362024 + 196362025.

It is an arithmetic number, because the mean of its divisors is an integer number (196362025).

Almost surely, 2^392724049 is an apocalyptic number.

It is an amenable number.

392724049 is a deficient number, since it is larger than the sum of its proper divisors (1).

392724049 is an equidigital number, since it uses as much as digits as its factorization.

392724049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 392724049 is about 19817.2664361158. The cubic root of 392724049 is about 732.3114629292.

The spelling of 392724049 in words is "three hundred ninety-two million, seven hundred twenty-four thousand, forty-nine".