99622717 has 2 divisors, whose sum is σ = 99622718. Its totient is φ = 99622716.

The previous prime is 99622693. The next prime is 99622753. The reversal of 99622717 is 71722699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98823481 + 799236 = 9941^2 + 894^2 .

It is a cyclic number.

It is not a de Polignac number, because 99622717 - 2¹¹ = 99620669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99622217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49811358 + 49811359.

It is an arithmetic number, because the mean of its divisors is an integer number (49811359).

Almost surely, 2^99622717 is an apocalyptic number.

It is an amenable number.

99622717 is a deficient number, since it is larger than the sum of its proper divisors (1).

99622717 is an equidigital number, since it uses as much as digits as its factorization.

99622717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95256, while the sum is 43.

The square root of 99622717 is about 9981.1180235483. The cubic root of 99622717 is about 463.5744168596.

The spelling of 99622717 in words is "ninety-nine million, six hundred twenty-two thousand, seven hundred seventeen".