99787070 has 16 divisors (see below), whose sum is σ = 179768160. Its totient is φ = 39881184.

The previous prime is 99787043. The next prime is 99787111. The reversal of 99787070 is 7078799.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10799 + ... + 17781.

It is an arithmetic number, because the mean of its divisors is an integer number (11235510).

Almost surely, 2^99787070 is an apocalyptic number.

99787070 is a deficient number, since it is larger than the sum of its proper divisors (79981090).

99787070 is a wasteful number, since it uses less digits than its factorization.

99787070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8419.

The product of its (nonzero) digits is 222264, while the sum is 47.

The square root of 99787070 is about 9989.3478265601. The cubic root of 99787070 is about 463.8292047521.

The spelling of 99787070 in words is "ninety-nine million, seven hundred eighty-seven thousand, seventy".