99618707 has 2 divisors, whose sum is σ = 99618708. Its totient is φ = 99618706.

The previous prime is 99618703. The next prime is 99618731. The reversal of 99618707 is 70781699.

It is a weak prime.

It is an emirp because it is prime and its reverse (70781699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99618707 - 2² = 99618703 is a prime.

It is not a weakly prime, because it can be changed into another prime (99618703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49809353 + 49809354.

It is an arithmetic number, because the mean of its divisors is an integer number (49809354).

Almost surely, 2^99618707 is an apocalyptic number.

99618707 is a deficient number, since it is larger than the sum of its proper divisors (1).

99618707 is an equidigital number, since it uses as much as digits as its factorization.

99618707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 99618707 is about 9980.9171422270. The cubic root of 99618707 is about 463.5681968648.

The spelling of 99618707 in words is "ninety-nine million, six hundred eighteen thousand, seven hundred seven".