98972279 has 8 divisors (see below), whose sum is σ = 113184768. Its totient is φ = 84778200.

The previous prime is 98972267. The next prime is 98972297. The reversal of 98972279 is 97227989.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98972279 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 98972279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98972479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10034 + ... + 17280.

It is an arithmetic number, because the mean of its divisors is an integer number (14148096).

Almost surely, 2^98972279 is an apocalyptic number.

98972279 is a deficient number, since it is larger than the sum of its proper divisors (14212489).

98972279 is a wasteful number, since it uses less digits than its factorization.

98972279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9205.

The product of its digits is 1143072, while the sum is 53.

The square root of 98972279 is about 9948.4812408729. The cubic root of 98972279 is about 462.5633187232.

The spelling of 98972279 in words is "ninety-eight million, nine hundred seventy-two thousand, two hundred seventy-nine".