99713797 has 2 divisors, whose sum is σ = 99713798. Its totient is φ = 99713796.

The previous prime is 99713741. The next prime is 99713813. The reversal of 99713797 is 79731799.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94303521 + 5410276 = 9711^2 + 2326^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99713797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99713707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49856898 + 49856899.

It is an arithmetic number, because the mean of its divisors is an integer number (49856899).

Almost surely, 2^99713797 is an apocalyptic number.

It is an amenable number.

99713797 is a deficient number, since it is larger than the sum of its proper divisors (1).

99713797 is an equidigital number, since it uses as much as digits as its factorization.

99713797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 750141, while the sum is 52.

The square root of 99713797 is about 9985.6795963019. The cubic root of 99713797 is about 463.7156480247.

The spelling of 99713797 in words is "ninety-nine million, seven hundred thirteen thousand, seven hundred ninety-seven".