99084257 has 4 divisors (see below), whose sum is σ = 99864576. Its totient is φ = 98303940.

The previous prime is 99084233. The next prime is 99084269. The reversal of 99084257 is 75248099.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75248099 = 6553 ⋅11483.

It is a cyclic number.

It is not a de Polignac number, because 99084257 - 2⁸ = 99084001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99084217) 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, 389969 + ... + 390222.

It is an arithmetic number, because the mean of its divisors is an integer number (24966144).

Almost surely, 2^99084257 is an apocalyptic number.

It is an amenable number.

99084257 is a deficient number, since it is larger than the sum of its proper divisors (780319).

99084257 is a wasteful number, since it uses less digits than its factorization.

99084257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780318.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 99084257 is about 9954.1075441247. The cubic root of 99084257 is about 462.7377022092.

The spelling of 99084257 in words is "ninety-nine million, eighty-four thousand, two hundred fifty-seven".