923975257 has 2 divisors, whose sum is σ = 923975258. Its totient is φ = 923975256.

The previous prime is 923975237. The next prime is 923975317. The reversal of 923975257 is 752579329.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 695693376 + 228281881 = 26376^2 + 15109^2 .

It is a cyclic number.

It is not a de Polignac number, because 923975257 - 2¹⁵ = 923942489 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 923975257.

It is not a weakly prime, because it can be changed into another prime (923975237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461987628 + 461987629.

It is an arithmetic number, because the mean of its divisors is an integer number (461987629).

Almost surely, 2^923975257 is an apocalyptic number.

It is an amenable number.

923975257 is a deficient number, since it is larger than the sum of its proper divisors (1).

923975257 is an equidigital number, since it uses as much as digits as its factorization.

923975257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1190700, while the sum is 49.

The square root of 923975257 is about 30396.9613119470. The cubic root of 923975257 is about 973.9876433239.

The spelling of 923975257 in words is "nine hundred twenty-three million, nine hundred seventy-five thousand, two hundred fifty-seven".