99777032 has 8 divisors (see below), whose sum is σ = 187081950. Its totient is φ = 49888512.

The previous prime is 99777031. The next prime is 99777043. The reversal of 99777032 is 23077799.

It can be written as a sum of positive squares in only one way, i.e., 54967396 + 44809636 = 7414^2 + 6694^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-4 number, since 4×99777032⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (99777031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6236057 + ... + 6236072.

Almost surely, 2^99777032 is an apocalyptic number.

It is an amenable number.

99777032 is a deficient number, since it is larger than the sum of its proper divisors (87304918).

99777032 is a wasteful number, since it uses less digits than its factorization.

99777032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12472135 (or 12472131 counting only the distinct ones).

The product of its (nonzero) digits is 166698, while the sum is 44.

The square root of 99777032 is about 9988.8453787212. The cubic root of 99777032 is about 463.8136513887.

The spelling of 99777032 in words is "ninety-nine million, seven hundred seventy-seven thousand, thirty-two".