99877666 has 8 divisors (see below), whose sum is σ = 171218880. Its totient is φ = 42804708.

The previous prime is 99877643. The next prime is 99877667. The reversal of 99877666 is 66677899.

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

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 99877666.

It is not an unprimeable number, because it can be changed into a prime (99877667) 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 3 ways as a sum of consecutive naturals, for example, 3567046 + ... + 3567073.

It is an arithmetic number, because the mean of its divisors is an integer number (21402360).

Almost surely, 2^99877666 is an apocalyptic number.

99877666 is a deficient number, since it is larger than the sum of its proper divisors (71341214).

99877666 is a wasteful number, since it uses less digits than its factorization.

99877666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7134128.

The product of its digits is 6858432, while the sum is 58.

The square root of 99877666 is about 9993.8814281539. The cubic root of 99877666 is about 463.9695314169.

The spelling of 99877666 in words is "ninety-nine million, eight hundred seventy-seven thousand, six hundred sixty-six".