99773091 has 24 divisors (see below), whose sum is σ = 158536560. Its totient is φ = 60461280.

The previous prime is 99773081. The next prime is 99773101. The reversal of 99773091 is 19037799.

It is an interprime number because it is at equal distance from previous prime (99773081) and next prime (99773101).

It is not a de Polignac number, because 99773091 - 2⁶ = 99773027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99773081) 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, 7815 + ... + 16143.

It is an arithmetic number, because the mean of its divisors is an integer number (6605690).

Almost surely, 2^99773091 is an apocalyptic number.

99773091 is a deficient number, since it is larger than the sum of its proper divisors (58763469).

99773091 is a wasteful number, since it uses less digits than its factorization.

99773091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8368 (or 8343 counting only the distinct ones).

The product of its (nonzero) digits is 107163, while the sum is 45.

The square root of 99773091 is about 9988.6481067260. The cubic root of 99773091 is about 463.8075447273.

It can be divided in two parts, 997 and 73091, that added together give a cube (74088 = 42³).

The spelling of 99773091 in words is "ninety-nine million, seven hundred seventy-three thousand, ninety-one".