98972637 has 4 divisors (see below), whose sum is σ = 131963520. Its totient is φ = 65981756.

The previous prime is 98972633. The next prime is 98972639. The reversal of 98972637 is 73627989.

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 98972637 - 2² = 98972633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 98972637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98972633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16495437 + ... + 16495442.

It is an arithmetic number, because the mean of its divisors is an integer number (32990880).

Almost surely, 2^98972637 is an apocalyptic number.

It is an amenable number.

98972637 is a deficient number, since it is larger than the sum of its proper divisors (32990883).

98972637 is a wasteful number, since it uses less digits than its factorization.

98972637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32990882.

The product of its digits is 1143072, while the sum is 51.

The square root of 98972637 is about 9948.4992335528. The cubic root of 98972637 is about 462.5638764466.

The spelling of 98972637 in words is "ninety-eight million, nine hundred seventy-two thousand, six hundred thirty-seven".