99297657 has 10 divisors (see below), whose sum is σ = 148333658. Its totient is φ = 66198384.

The previous prime is 99297641. The next prime is 99297703. The reversal of 99297657 is 75679299.

It can be written as a sum of positive squares in only one way, i.e., 93779856 + 5517801 = 9684^2 + 2349^2 .

It is not a de Polignac number, because 99297657 - 2⁴ = 99297641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99297637) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 612868 + ... + 613029.

Almost surely, 2^99297657 is an apocalyptic number.

It is an amenable number.

99297657 is a deficient number, since it is larger than the sum of its proper divisors (49036001).

99297657 is a wasteful number, since it uses less digits than its factorization.

99297657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225909 (or 1225900 counting only the distinct ones).

The product of its digits is 2143260, while the sum is 54.

The square root of 99297657 is about 9964.8209717987. The cubic root of 99297657 is about 463.0696668800.

The spelling of 99297657 in words is "ninety-nine million, two hundred ninety-seven thousand, six hundred fifty-seven".