9098417021 has 4 divisors (see below), whose sum is σ = 9108086844. Its totient is φ = 9088747200.

The previous prime is 9098416979. The next prime is 9098417063. The reversal of 9098417021 is 1207148909.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1207148909 = 59 ⋅20460151.

It is an interprime number because it is at equal distance from previous prime (9098416979) and next prime (9098417063).

It can be written as a sum of positive squares in 2 ways, for example, as 4473736996 + 4624680025 = 66886^2 + 68005^2 .

It is a cyclic number.

It is not a de Polignac number, because 9098417021 - 2²² = 9094222717 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 9098417021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9098417521) 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, 4833500 + ... + 4835381.

It is an arithmetic number, because the mean of its divisors is an integer number (2277021711).

Almost surely, 2^9098417021 is an apocalyptic number.

It is an amenable number.

9098417021 is a deficient number, since it is larger than the sum of its proper divisors (9669823).

9098417021 is an equidigital number, since it uses as much as digits as its factorization.

9098417021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9669822.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 9098417021 is about 95385.6227164241. The cubic root of 9098417021 is about 2087.6384137894.

The spelling of 9098417021 in words is "nine billion, ninety-eight million, four hundred seventeen thousand, twenty-one".