9794498621 has 2 divisors, whose sum is σ = 9794498622. Its totient is φ = 9794498620.

The previous prime is 9794498563. The next prime is 9794498663. The reversal of 9794498621 is 1268944979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7240308100 + 2554190521 = 85090^2 + 50539^2 .

It is a cyclic number.

It is not a de Polignac number, because 9794498621 - 2¹⁰ = 9794497597 is a prime.

It is a super-4 number, since 4×9794498621⁴ (a number of 41 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9794492621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4897249310 + 4897249311.

It is an arithmetic number, because the mean of its divisors is an integer number (4897249311).

Almost surely, 2^9794498621 is an apocalyptic number.

It is an amenable number.

9794498621 is a deficient number, since it is larger than the sum of its proper divisors (1).

9794498621 is an equidigital number, since it uses as much as digits as its factorization.

9794498621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 59.

The square root of 9794498621 is about 98967.1593054989. The cubic root of 9794498621 is about 2139.5744503496.

The spelling of 9794498621 in words is "nine billion, seven hundred ninety-four million, four hundred ninety-eight thousand, six hundred twenty-one".