99078895 has 4 divisors (see below), whose sum is σ = 118894680. Its totient is φ = 79263112.

The previous prime is 99078853. The next prime is 99078913. The reversal of 99078895 is 59887099.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99078895 - 2¹⁹ = 98554607 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 9907885 + ... + 9907894.

It is an arithmetic number, because the mean of its divisors is an integer number (29723670).

Almost surely, 2^99078895 is an apocalyptic number.

99078895 is a deficient number, since it is larger than the sum of its proper divisors (19815785).

99078895 is a wasteful number, since it uses less digits than its factorization.

99078895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19815784.

The product of its (nonzero) digits is 1632960, while the sum is 55.

The square root of 99078895 is about 9953.8382044315. The cubic root of 99078895 is about 462.7293549554.

The spelling of 99078895 in words is "ninety-nine million, seventy-eight thousand, eight hundred ninety-five".