99773892 has 18 divisors (see below), whose sum is σ = 252206318. Its totient is φ = 33257952.

The previous prime is 99773887. The next prime is 99773893. The reversal of 99773892 is 29837799.

It can be written as a sum of positive squares in only one way, i.e., 99680256 + 93636 = 9984^2 + 306^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (99773893) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1385713 + ... + 1385784.

Almost surely, 2^99773892 is an apocalyptic number.

It is an amenable number.

99773892 is an abundant number, since it is smaller than the sum of its proper divisors (152432426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99773892 is a wasteful number, since it uses less digits than its factorization.

99773892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771507 (or 2771502 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 54.

The square root of 99773892 is about 9988.6882021615. The cubic root of 99773892 is about 463.8087859064.

The spelling of 99773892 in words is "ninety-nine million, seven hundred seventy-three thousand, eight hundred ninety-two".