99957587 has 2 divisors, whose sum is σ = 99957588. Its totient is φ = 99957586.

The previous prime is 99957553. The next prime is 99957593. The reversal of 99957587 is 78575999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99957587 - 2¹⁴ = 99941203 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99957527) 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, 49978793 + 49978794.

It is an arithmetic number, because the mean of its divisors is an integer number (49978794).

Almost surely, 2^99957587 is an apocalyptic number.

99957587 is a deficient number, since it is larger than the sum of its proper divisors (1).

99957587 is an equidigital number, since it uses as much as digits as its factorization.

99957587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7144200, while the sum is 59.

The square root of 99957587 is about 9997.8791250945. The cubic root of 99957587 is about 464.0932528460.

The spelling of 99957587 in words is "ninety-nine million, nine hundred fifty-seven thousand, five hundred eighty-seven".