99000919 has 2 divisors, whose sum is σ = 99000920. Its totient is φ = 99000918.

The previous prime is 99000917. The next prime is 99000953. The reversal of 99000919 is 91900099.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99000919 - 2¹ = 99000917 is a prime.

It is a super-2 number, since 2×99000919² = 19602363925689122, which contains 22 as substring.

Together with 99000917, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99000917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49500459 + 49500460.

It is an arithmetic number, because the mean of its divisors is an integer number (49500460).

Almost surely, 2^99000919 is an apocalyptic number.

99000919 is a deficient number, since it is larger than the sum of its proper divisors (1).

99000919 is an equidigital number, since it uses as much as digits as its factorization.

99000919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6561, while the sum is 37.

The square root of 99000919 is about 9949.9205524466. The cubic root of 99000919 is about 462.6079323461.

The spelling of 99000919 in words is "ninety-nine million, nine hundred nineteen", and thus it is an aban number.