99877929 has 8 divisors (see below), whose sum is σ = 133390272. Its totient is φ = 66475440.

The previous prime is 99877919. The next prime is 99877931. The reversal of 99877929 is 92977899.

It is a happy number.

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

It is not a de Polignac number, because 99877929 - 2⁴ = 99877913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99877919) 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 7 ways as a sum of consecutive naturals, for example, 25317 + ... + 28994.

It is an arithmetic number, because the mean of its divisors is an integer number (16673784).

Almost surely, 2^99877929 is an apocalyptic number.

It is an amenable number.

99877929 is a deficient number, since it is larger than the sum of its proper divisors (33512343).

99877929 is a wasteful number, since it uses less digits than its factorization.

99877929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54927.

The product of its digits is 5143824, while the sum is 60.

The square root of 99877929 is about 9993.8945861961. The cubic root of 99877929 is about 463.9699386613.

The spelling of 99877929 in words is "ninety-nine million, eight hundred seventy-seven thousand, nine hundred twenty-nine".