98923921 has 8 divisors (see below), whose sum is σ = 99800064. Its totient is φ = 98051760.

The previous prime is 98923919. The next prime is 98923933. The reversal of 98923921 is 12932989.

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

It is a cyclic number.

It is not a de Polignac number, because 98923921 - 2¹ = 98923919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98923421) 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, 68610 + ... + 70036.

It is an arithmetic number, because the mean of its divisors is an integer number (12475008).

Almost surely, 2^98923921 is an apocalyptic number.

It is an amenable number.

98923921 is a deficient number, since it is larger than the sum of its proper divisors (876143).

98923921 is a wasteful number, since it uses less digits than its factorization.

98923921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991.

The product of its digits is 69984, while the sum is 43.

The square root of 98923921 is about 9946.0505226949. The cubic root of 98923921 is about 462.4879700791.

The spelling of 98923921 in words is "ninety-eight million, nine hundred twenty-three thousand, nine hundred twenty-one".