99935657 has 2 divisors, whose sum is σ = 99935658. Its totient is φ = 99935656.

The previous prime is 99935651. The next prime is 99935663. The reversal of 99935657 is 75653999.

It is a balanced prime because it is at equal distance from previous prime (99935651) and next prime (99935663).

It can be written as a sum of positive squares in only one way, i.e., 99580441 + 355216 = 9979^2 + 596^2 .

It is a cyclic number.

It is not a de Polignac number, because 99935657 - 2²⁰ = 98887081 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 99935599 and 99935608.

It is not a weakly prime, because it can be changed into another prime (99935651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49967828 + 49967829.

It is an arithmetic number, because the mean of its divisors is an integer number (49967829).

Almost surely, 2^99935657 is an apocalyptic number.

It is an amenable number.

99935657 is a deficient number, since it is larger than the sum of its proper divisors (1).

99935657 is an equidigital number, since it uses as much as digits as its factorization.

99935657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2296350, while the sum is 53.

The square root of 99935657 is about 9996.7823323307. The cubic root of 99935657 is about 464.0593107521.

The spelling of 99935657 in words is "ninety-nine million, nine hundred thirty-five thousand, six hundred fifty-seven".