99095891 has 4 divisors (see below), whose sum is σ = 103404432. Its totient is φ = 94787352.

The previous prime is 99095851. The next prime is 99095897. The reversal of 99095891 is 19859099.

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 99095891 - 2¹⁰ = 99094867 is a prime.

It is a super-2 number, since 2×99095891² = 19639991226167762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99095897) 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 3 ways as a sum of consecutive naturals, for example, 2154236 + ... + 2154281.

It is an arithmetic number, because the mean of its divisors is an integer number (25851108).

Almost surely, 2^99095891 is an apocalyptic number.

99095891 is a deficient number, since it is larger than the sum of its proper divisors (4308541).

99095891 is a wasteful number, since it uses less digits than its factorization.

99095891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4308540.

The product of its (nonzero) digits is 262440, while the sum is 50.

The square root of 99095891 is about 9954.6919088438. The cubic root of 99095891 is about 462.7558123171.

The spelling of 99095891 in words is "ninety-nine million, ninety-five thousand, eight hundred ninety-one".