98679879 has 6 divisors (see below), whose sum is σ = 142537616. Its totient is φ = 65786580.

The previous prime is 98679877. The next prime is 98679887. The reversal of 98679879 is 97897689.

It is not a de Polignac number, because 98679879 - 2¹ = 98679877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98679877) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5482207 + ... + 5482224.

Almost surely, 2^98679879 is an apocalyptic number.

98679879 is a deficient number, since it is larger than the sum of its proper divisors (43857737).

98679879 is a wasteful number, since it uses less digits than its factorization.

98679879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10964437 (or 10964434 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 63.

The square root of 98679879 is about 9933.7746602185. The cubic root of 98679879 is about 462.1073427981.

The spelling of 98679879 in words is "ninety-eight million, six hundred seventy-nine thousand, eight hundred seventy-nine".