98861979 has 4 divisors (see below), whose sum is σ = 131815976. Its totient is φ = 65907984.

The previous prime is 98861977. The next prime is 98861999. The reversal of 98861979 is 97916889.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 98861979 - 2¹ = 98861977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98861977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16476994 + ... + 16476999.

It is an arithmetic number, because the mean of its divisors is an integer number (32953994).

Almost surely, 2^98861979 is an apocalyptic number.

98861979 is a deficient number, since it is larger than the sum of its proper divisors (32953997).

98861979 is a wasteful number, since it uses less digits than its factorization.

98861979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32953996.

The product of its digits is 1959552, while the sum is 57.

The square root of 98861979 is about 9942.9361357700. The cubic root of 98861979 is about 462.3914197506.

The spelling of 98861979 in words is "ninety-eight million, eight hundred sixty-one thousand, nine hundred seventy-nine".