99877745 has 8 divisors (see below), whose sum is σ = 130749120. Its totient is φ = 72638320.

The previous prime is 99877717. The next prime is 99877751. The reversal of 99877745 is 54777899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99877745 - 2²⁰ = 98829169 is a prime.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 907925 + ... + 908034.

It is an arithmetic number, because the mean of its divisors is an integer number (16343640).

Almost surely, 2^99877745 is an apocalyptic number.

It is an amenable number.

99877745 is a deficient number, since it is larger than the sum of its proper divisors (30871375).

99877745 is a wasteful number, since it uses less digits than its factorization.

99877745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815975.

The product of its digits is 4445280, while the sum is 56.

The square root of 99877745 is about 9993.8853805715. The cubic root of 99877745 is about 463.9696537451.

The spelling of 99877745 in words is "ninety-nine million, eight hundred seventy-seven thousand, seven hundred forty-five".