98974087621 has 4 divisors (see below), whose sum is σ = 100166546592. Its totient is φ = 97781628652.

The previous prime is 98974087613. The next prime is 98974087627. The reversal of 98974087621 is 12678047989.

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 98974087621 - 2³ = 98974087613 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 98974087621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98974087627) 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, 596229361 + ... + 596229526.

It is an arithmetic number, because the mean of its divisors is an integer number (25041636648).

Almost surely, 2^98974087621 is an apocalyptic number.

It is an amenable number.

98974087621 is a deficient number, since it is larger than the sum of its proper divisors (1192458971).

98974087621 is a wasteful number, since it uses less digits than its factorization.

98974087621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192458970.

The product of its (nonzero) digits is 12192768, while the sum is 61.

The spelling of 98974087621 in words is "ninety-eight billion, nine hundred seventy-four million, eighty-seven thousand, six hundred twenty-one".