98986879 has 8 divisors (see below), whose sum is σ = 100420992. Its totient is φ = 97558680.

The previous prime is 98986861. The next prime is 98986883. The reversal of 98986879 is 97868989.

98986879 = T₈₁₂₂ + T₈₁₂₃ + T₈₁₂₄.

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

It is a cyclic number.

It is not a de Polignac number, because 98986879 - 2¹⁹ = 98462591 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 98986879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98986829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40564 + ... + 42934.

It is an arithmetic number, because the mean of its divisors is an integer number (12552624).

Almost surely, 2^98986879 is an apocalyptic number.

98986879 is the 8124-th centered triangular number.

98986879 is a deficient number, since it is larger than the sum of its proper divisors (1434113).

98986879 is a wasteful number, since it uses less digits than its factorization.

98986879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2957.

The product of its digits is 15676416, while the sum is 64.

The square root of 98986879 is about 9949.2149941591. The cubic root of 98986879 is about 462.5860627766.

The spelling of 98986879 in words is "ninety-eight million, nine hundred eighty-six thousand, eight hundred seventy-nine".