98227921 has 27 divisors (see below), whose sum is σ = 116899153. Its totient is φ = 82459520.

The previous prime is 98227919. The next prime is 98227931. The reversal of 98227921 is 12972289.

98227921 = 433² + 434² + ... + 721².

The square root of 98227921 is 9911.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 24611521 + 73616400 = 4961^2 + 8580^2 .

It is not a de Polignac number, because 98227921 - 2¹ = 98227919 is a prime.

It is a Duffinian number.

Its product of digits (36288) is a multiple of the sum of its prime divisors (81).

It is not an unprimeable number, because it can be changed into a prime (98227931) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1853331 + ... + 1853383.

Almost surely, 2^98227921 is an apocalyptic number.

98227921 is the 9911-st square number.

98227921 is the 4956-th centered octagonal number.

It is an amenable number.

98227921 is a deficient number, since it is larger than the sum of its proper divisors (18671232).

98227921 is a wasteful number, since it uses less digits than its factorization.

98227921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 81 counting only the distinct ones).

The product of its digits is 36288, while the sum is 40.

The cubic root of 98227921 is about 461.4007726295.

The spelling of 98227921 in words is "ninety-eight million, two hundred twenty-seven thousand, nine hundred twenty-one".