923542657 has 2 divisors, whose sum is σ = 923542658. Its totient is φ = 923542656.

The previous prime is 923542643. The next prime is 923542661. The reversal of 923542657 is 756245329.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 709476496 + 214066161 = 26636^2 + 14631^2 .

It is a cyclic number.

It is not a de Polignac number, because 923542657 - 2²³ = 915154049 is a prime.

It is not a weakly prime, because it can be changed into another prime (923542157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461771328 + 461771329.

It is an arithmetic number, because the mean of its divisors is an integer number (461771329).

Almost surely, 2^923542657 is an apocalyptic number.

It is an amenable number.

923542657 is a deficient number, since it is larger than the sum of its proper divisors (1).

923542657 is an equidigital number, since it uses as much as digits as its factorization.

923542657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 43.

The square root of 923542657 is about 30389.8446359964. The cubic root of 923542657 is about 973.8356144228.

The spelling of 923542657 in words is "nine hundred twenty-three million, five hundred forty-two thousand, six hundred fifty-seven".