99377797 has 2 divisors, whose sum is σ = 99377798. Its totient is φ = 99377796.

The previous prime is 99377753. The next prime is 99377821. The reversal of 99377797 is 79777399.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64496961 + 34880836 = 8031^2 + 5906^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99377797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99377717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49688898 + 49688899.

It is an arithmetic number, because the mean of its divisors is an integer number (49688899).

Almost surely, 2^99377797 is an apocalyptic number.

It is an amenable number.

99377797 is a deficient number, since it is larger than the sum of its proper divisors (1).

99377797 is an equidigital number, since it uses as much as digits as its factorization.

99377797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5250987, while the sum is 58.

The square root of 99377797 is about 9968.8413067919. The cubic root of 99377797 is about 463.1942096777.

The spelling of 99377797 in words is "ninety-nine million, three hundred seventy-seven thousand, seven hundred ninety-seven".