99613867 has 2 divisors, whose sum is σ = 99613868. Its totient is φ = 99613866.

The previous prime is 99613853. The next prime is 99613937. The reversal of 99613867 is 76831699.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99613867 - 2¹¹ = 99611819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99613867.

It is not a weakly prime, because it can be changed into another prime (99613837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49806933 + 49806934.

It is an arithmetic number, because the mean of its divisors is an integer number (49806934).

Almost surely, 2^99613867 is an apocalyptic number.

99613867 is a deficient number, since it is larger than the sum of its proper divisors (1).

99613867 is an equidigital number, since it uses as much as digits as its factorization.

99613867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 49.

The square root of 99613867 is about 9980.6746765938. The cubic root of 99613867 is about 463.5606892173.

The spelling of 99613867 in words is "ninety-nine million, six hundred thirteen thousand, eight hundred sixty-seven".