99679087 has 2 divisors, whose sum is σ = 99679088. Its totient is φ = 99679086.

The previous prime is 99679067. The next prime is 99679121. The reversal of 99679087 is 78097699.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99679087 - 2¹⁵ = 99646319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99679037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49839543 + 49839544.

It is an arithmetic number, because the mean of its divisors is an integer number (49839544).

Almost surely, 2^99679087 is an apocalyptic number.

99679087 is a deficient number, since it is larger than the sum of its proper divisors (1).

99679087 is an equidigital number, since it uses as much as digits as its factorization.

99679087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1714608, while the sum is 55.

The square root of 99679087 is about 9983.9414561585. The cubic root of 99679087 is about 463.6618358857.

The spelling of 99679087 in words is "ninety-nine million, six hundred seventy-nine thousand, eighty-seven".