99960571 has 2 divisors, whose sum is σ = 99960572. Its totient is φ = 99960570.

The previous prime is 99960563. The next prime is 99960589. The reversal of 99960571 is 17506999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99960571 - 2³ = 99960563 is a prime.

It is not a weakly prime, because it can be changed into another prime (99960551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49980285 + 49980286.

It is an arithmetic number, because the mean of its divisors is an integer number (49980286).

Almost surely, 2^99960571 is an apocalyptic number.

99960571 is a deficient number, since it is larger than the sum of its proper divisors (1).

99960571 is an equidigital number, since it uses as much as digits as its factorization.

99960571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 153090, while the sum is 46.

The square root of 99960571 is about 9998.0283556309. The cubic root of 99960571 is about 464.0978709397.

The spelling of 99960571 in words is "ninety-nine million, nine hundred sixty thousand, five hundred seventy-one".