99912850 has 12 divisors (see below), whose sum is σ = 185837994. Its totient is φ = 39965120.

The previous prime is 99912821. The next prime is 99912853. The reversal of 99912850 is 5821999.

It can be written as a sum of positive squares in 3 ways, for example, as 81739681 + 18173169 = 9041^2 + 4263^2 .

It is a super-3 number, since 3×99912850³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99912797 and 99912806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99912853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 999079 + ... + 999178.

Almost surely, 2^99912850 is an apocalyptic number.

99912850 is a deficient number, since it is larger than the sum of its proper divisors (85925144).

99912850 is a wasteful number, since it uses less digits than its factorization.

99912850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998269 (or 1998264 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 43.

The square root of 99912850 is about 9995.6415501958. The cubic root of 99912850 is about 464.0240060162.

The spelling of 99912850 in words is "ninety-nine million, nine hundred twelve thousand, eight hundred fifty".