99285187 has 4 divisors (see below), whose sum is σ = 99309736. Its totient is φ = 99260640.

The previous prime is 99285163. The next prime is 99285209. The reversal of 99285187 is 78158299.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99285187 is a prime.

It is a pancake number, because a pancake can be divided into 99285187 parts by 14091 straight cuts.

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 99285187.

It is not an unprimeable number, because it can be changed into a prime (99285587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4614 + ... + 14827.

It is an arithmetic number, because the mean of its divisors is an integer number (24827434).

Almost surely, 2^99285187 is an apocalyptic number.

99285187 is a deficient number, since it is larger than the sum of its proper divisors (24549).

99285187 is a wasteful number, since it uses less digits than its factorization.

99285187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24548.

The product of its digits is 362880, while the sum is 49.

The square root of 99285187 is about 9964.1952509974. The cubic root of 99285187 is about 463.0502816610.

The spelling of 99285187 in words is "ninety-nine million, two hundred eighty-five thousand, one hundred eighty-seven".