99877899 has 16 divisors (see below), whose sum is σ = 146615040. Its totient is φ = 59974560.

The previous prime is 99877879. The next prime is 99877913.

99877899 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 99877899 - 2⁸ = 99877643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99877879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10287 + ... + 17480.

It is an arithmetic number, because the mean of its divisors is an integer number (9163440).

Almost surely, 2^99877899 is an apocalyptic number.

99877899 is a deficient number, since it is larger than the sum of its proper divisors (46737141).

99877899 is a wasteful number, since it uses less digits than its factorization.

99877899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27890.

The product of its digits is 20575296, while the sum is 66.

The square root of 99877899 is about 9993.8930852796. The cubic root of 99877899 is about 463.9698922076.

The spelling of 99877899 in words is "ninety-nine million, eight hundred seventy-seven thousand, eight hundred ninety-nine".