98983679821 has 8 divisors (see below), whose sum is σ = 112208220320. Its totient is φ = 86560626672.

The previous prime is 98983679803. The next prime is 98983679833. The reversal of 98983679821 is 12897638989.

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

It is not a de Polignac number, because 98983679821 - 2⁵ = 98983679789 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 (98983679021) 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, 200371575 + ... + 200372068.

It is an arithmetic number, because the mean of its divisors is an integer number (14026027540).

Almost surely, 2^98983679821 is an apocalyptic number.

It is an amenable number.

98983679821 is a deficient number, since it is larger than the sum of its proper divisors (13224540499).

98983679821 is a wasteful number, since it uses less digits than its factorization.

98983679821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400743675.

The product of its digits is 94058496, while the sum is 70.

The spelling of 98983679821 in words is "ninety-eight billion, nine hundred eighty-three million, six hundred seventy-nine thousand, eight hundred twenty-one".