99707837 has 2 divisors, whose sum is σ = 99707838. Its totient is φ = 99707836.

The previous prime is 99707819. The next prime is 99707849. The reversal of 99707837 is 73870799.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83795716 + 15912121 = 9154^2 + 3989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99707837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99707437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49853918 + 49853919.

It is an arithmetic number, because the mean of its divisors is an integer number (49853919).

Almost surely, 2^99707837 is an apocalyptic number.

It is an amenable number.

99707837 is a deficient number, since it is larger than the sum of its proper divisors (1).

99707837 is an equidigital number, since it uses as much as digits as its factorization.

99707837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 666792, while the sum is 50.

The square root of 99707837 is about 9985.3811644824. The cubic root of 99707837 is about 463.7064089143.

The spelling of 99707837 in words is "ninety-nine million, seven hundred seven thousand, eight hundred thirty-seven".