99576457 has 2 divisors, whose sum is σ = 99576458. Its totient is φ = 99576456.

The previous prime is 99576443. The next prime is 99576479. The reversal of 99576457 is 75467599.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83704201 + 15872256 = 9149^2 + 3984^2 .

It is a cyclic number.

It is not a de Polignac number, because 99576457 - 2⁷ = 99576329 is a prime.

It is not a weakly prime, because it can be changed into another prime (99576487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49788228 + 49788229.

It is an arithmetic number, because the mean of its divisors is an integer number (49788229).

Almost surely, 2^99576457 is an apocalyptic number.

It is an amenable number.

99576457 is a deficient number, since it is larger than the sum of its proper divisors (1).

99576457 is an equidigital number, since it uses as much as digits as its factorization.

99576457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2381400, while the sum is 52.

The square root of 99576457 is about 9978.8003788031. The cubic root of 99576457 is about 463.5026518601.

The spelling of 99576457 in words is "ninety-nine million, five hundred seventy-six thousand, four hundred fifty-seven".