99850657 has 2 divisors, whose sum is σ = 99850658. Its totient is φ = 99850656.

The previous prime is 99850631. The next prime is 99850691. The reversal of 99850657 is 75605899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90554256 + 9296401 = 9516^2 + 3049^2 .

It is a cyclic number.

It is not a de Polignac number, because 99850657 - 2¹⁵ = 99817889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99850657.

It is not a weakly prime, because it can be changed into another prime (99850627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49925328 + 49925329.

It is an arithmetic number, because the mean of its divisors is an integer number (49925329).

Almost surely, 2^99850657 is an apocalyptic number.

It is an amenable number.

99850657 is a deficient number, since it is larger than the sum of its proper divisors (1).

99850657 is an equidigital number, since it uses as much as digits as its factorization.

99850657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 99850657 is about 9992.5300599998. The cubic root of 99850657 is about 463.9277053066.

The spelling of 99850657 in words is "ninety-nine million, eight hundred fifty thousand, six hundred fifty-seven".