98979949 has 4 divisors (see below), whose sum is σ = 104189440. Its totient is φ = 93770460.

The previous prime is 98979943. The next prime is 98979961. The reversal of 98979949 is 94997989.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 98979949 - 2³ = 98979941 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 (98979941) 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, 2604717 + ... + 2604754.

It is an arithmetic number, because the mean of its divisors is an integer number (26047360).

Almost surely, 2^98979949 is an apocalyptic number.

It is an amenable number.

98979949 is a deficient number, since it is larger than the sum of its proper divisors (5209491).

98979949 is a wasteful number, since it uses less digits than its factorization.

98979949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5209490.

The product of its digits is 13226976, while the sum is 64.

The square root of 98979949 is about 9948.8667193807. The cubic root of 98979949 is about 462.5752674191.

The spelling of 98979949 in words is "ninety-eight million, nine hundred seventy-nine thousand, nine hundred forty-nine".