99856955 has 16 divisors (see below), whose sum is σ = 131998464. Its totient is φ = 71914080.

The previous prime is 99856943. The next prime is 99856973. The reversal of 99856955 is 55965899.

It is not a de Polignac number, because 99856955 - 2⁶ = 99856891 is a prime.

It is a super-2 number, since 2×99856955² = 19942822923744050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99856955.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3149 + ... + 14478.

It is an arithmetic number, because the mean of its divisors is an integer number (8249904).

Almost surely, 2^99856955 is an apocalyptic number.

99856955 is a deficient number, since it is larger than the sum of its proper divisors (32141509).

99856955 is a wasteful number, since it uses less digits than its factorization.

99856955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17746.

The product of its digits is 4374000, while the sum is 56.

The square root of 99856955 is about 9992.8451904350. The cubic root of 99856955 is about 463.9374590573.

The spelling of 99856955 in words is "ninety-nine million, eight hundred fifty-six thousand, nine hundred fifty-five".