99875957 has 2 divisors, whose sum is σ = 99875958. Its totient is φ = 99875956.

The previous prime is 99875939. The next prime is 99876011. The reversal of 99875957 is 75957899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83923921 + 15952036 = 9161^2 + 3994^2 .

It is a cyclic number.

It is not a de Polignac number, because 99875957 - 2¹⁰ = 99874933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99875896 and 99875905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99875917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49937978 + 49937979.

It is an arithmetic number, because the mean of its divisors is an integer number (49937979).

Almost surely, 2^99875957 is an apocalyptic number.

It is an amenable number.

99875957 is a deficient number, since it is larger than the sum of its proper divisors (1).

99875957 is an equidigital number, since it uses as much as digits as its factorization.

99875957 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 99875957 is about 9993.7959254730. The cubic root of 99875957 is about 463.9668850847.

The spelling of 99875957 in words is "ninety-nine million, eight hundred seventy-five thousand, nine hundred fifty-seven".