99398737 has 2 divisors, whose sum is σ = 99398738. Its totient is φ = 99398736.

The previous prime is 99398731. The next prime is 99398743. The reversal of 99398737 is 73789399.

It is a balanced prime because it is at equal distance from previous prime (99398731) and next prime (99398743).

It can be written as a sum of positive squares in only one way, i.e., 66324736 + 33074001 = 8144^2 + 5751^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99398737 is a prime.

It is not a weakly prime, because it can be changed into another prime (99398731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49699368 + 49699369.

It is an arithmetic number, because the mean of its divisors is an integer number (49699369).

Almost surely, 2^99398737 is an apocalyptic number.

It is an amenable number.

99398737 is a deficient number, since it is larger than the sum of its proper divisors (1).

99398737 is an equidigital number, since it uses as much as digits as its factorization.

99398737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2571912, while the sum is 55.

The square root of 99398737 is about 9969.8915239836. The cubic root of 99398737 is about 463.2267407724.

The spelling of 99398737 in words is "ninety-nine million, three hundred ninety-eight thousand, seven hundred thirty-seven".