99019775 has 24 divisors (see below), whose sum is σ = 129158400. Its totient is φ = 75196800.

The previous prime is 99019727. The next prime is 99019777. The reversal of 99019775 is 57791099.

It is a happy number.

It is not a de Polignac number, because 99019775 - 2²⁶ = 31910911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99019777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43106 + ... + 45344.

It is an arithmetic number, because the mean of its divisors is an integer number (5381600).

Almost surely, 2^99019775 is an apocalyptic number.

99019775 is a deficient number, since it is larger than the sum of its proper divisors (30138625).

99019775 is a wasteful number, since it uses less digits than its factorization.

99019775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2339 (or 2334 counting only the distinct ones).

The product of its (nonzero) digits is 178605, while the sum is 47.

The square root of 99019775 is about 9950.8680525872. The cubic root of 99019775 is about 462.6373003611.

The spelling of 99019775 in words is "ninety-nine million, nineteen thousand, seven hundred seventy-five".