98974921 has 2 divisors, whose sum is σ = 98974922. Its totient is φ = 98974920.

The previous prime is 98974907. The next prime is 98974937. The reversal of 98974921 is 12947989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91489225 + 7485696 = 9565^2 + 2736^2 .

It is a cyclic number.

It is not a de Polignac number, because 98974921 - 2⁷ = 98974793 is a prime.

It is not a weakly prime, because it can be changed into another prime (98974961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49487460 + 49487461.

It is an arithmetic number, because the mean of its divisors is an integer number (49487461).

Almost surely, 2^98974921 is an apocalyptic number.

It is an amenable number.

98974921 is a deficient number, since it is larger than the sum of its proper divisors (1).

98974921 is an equidigital number, since it uses as much as digits as its factorization.

98974921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 49.

The square root of 98974921 is about 9948.6140240739. The cubic root of 98974921 is about 462.5674346279.

The spelling of 98974921 in words is "ninety-eight million, nine hundred seventy-four thousand, nine hundred twenty-one".