9794498921 has 4 divisors (see below), whose sum is σ = 9918480000. Its totient is φ = 9670517844.

The previous prime is 9794498873. The next prime is 9794498957. The reversal of 9794498921 is 1298944979.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9794498921 - 2¹⁰ = 9794497897 is a prime.

It is a super-2 number, since 2×9794498921² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9794498621) 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, 61990421 + ... + 61990578.

It is an arithmetic number, because the mean of its divisors is an integer number (2479620000).

Almost surely, 2^9794498921 is an apocalyptic number.

It is an amenable number.

9794498921 is a deficient number, since it is larger than the sum of its proper divisors (123981079).

9794498921 is a wasteful number, since it uses less digits than its factorization.

9794498921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123981078.

The product of its digits is 11757312, while the sum is 62.

The square root of 9794498921 is about 98967.1608211532. The cubic root of 9794498921 is about 2139.5744721943.

The spelling of 9794498921 in words is "nine billion, seven hundred ninety-four million, four hundred ninety-eight thousand, nine hundred twenty-one".