99081775 has 12 divisors (see below), whose sum is σ = 132312712. Its totient is φ = 73167840.

The previous prime is 99081757. The next prime is 99081779. The reversal of 99081775 is 57718099.

It is not a de Polignac number, because 99081775 - 2⁵ = 99081743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99081779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152109 + ... + 152758.

Almost surely, 2^99081775 is an apocalyptic number.

99081775 is a deficient number, since it is larger than the sum of its proper divisors (33230937).

99081775 is a wasteful number, since it uses less digits than its factorization.

99081775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304890 (or 304885 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 46.

The square root of 99081775 is about 9953.9828711928. The cubic root of 99081775 is about 462.7338384115.

It can be divided in two parts, 99081 and 775, that added together give a square (99856 = 316²).

The spelling of 99081775 in words is "ninety-nine million, eighty-one thousand, seven hundred seventy-five".