922640479 has 2 divisors, whose sum is σ = 922640480. Its totient is φ = 922640478.

The previous prime is 922640443. The next prime is 922640549. The reversal of 922640479 is 974046229.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-922640479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (922644479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461320239 + 461320240.

It is an arithmetic number, because the mean of its divisors is an integer number (461320240).

Almost surely, 2^922640479 is an apocalyptic number.

922640479 is a deficient number, since it is larger than the sum of its proper divisors (1).

922640479 is an equidigital number, since it uses as much as digits as its factorization.

922640479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 922640479 is about 30374.9975967077. The cubic root of 922640479 is about 973.5184086072.

The spelling of 922640479 in words is "nine hundred twenty-two million, six hundred forty thousand, four hundred seventy-nine".