9794396161 has 4 divisors (see below), whose sum is σ = 10684795824. Its totient is φ = 8903996500.

The previous prime is 9794396149. The next prime is 9794396189. The reversal of 9794396161 is 1616934979.

It is a happy number.

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 9794396161 - 2²¹ = 9792299009 is a prime.

It is a super-2 number, since 2×9794396161² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9794396141) 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, 445199815 + ... + 445199836.

It is an arithmetic number, because the mean of its divisors is an integer number (2671198956).

Almost surely, 2^9794396161 is an apocalyptic number.

It is an amenable number.

9794396161 is a deficient number, since it is larger than the sum of its proper divisors (890399663).

9794396161 is a wasteful number, since it uses less digits than its factorization.

9794396161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890399662.

The product of its digits is 2204496, while the sum is 55.

The square root of 9794396161 is about 98966.6416576818. The cubic root of 9794396161 is about 2139.5669896457.

The spelling of 9794396161 in words is "nine billion, seven hundred ninety-four million, three hundred ninety-six thousand, one hundred sixty-one".