7897704169 has 4 divisors (see below), whose sum is σ = 7959890944. Its totient is φ = 7835517396.

The previous prime is 7897704163. The next prime is 7897704209. The reversal of 7897704169 is 9614077987.

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 7897704169 - 2⁷ = 7897704041 is a prime.

It is a super-2 number, since 2×7897704169² (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 (7897704163) 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, 31093197 + ... + 31093450.

It is an arithmetic number, because the mean of its divisors is an integer number (1989972736).

Almost surely, 2^7897704169 is an apocalyptic number.

It is an amenable number.

7897704169 is a deficient number, since it is larger than the sum of its proper divisors (62186775).

7897704169 is a wasteful number, since it uses less digits than its factorization.

7897704169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62186774.

The product of its (nonzero) digits is 5334336, while the sum is 58.

The square root of 7897704169 is about 88869.0281763000. The cubic root of 7897704169 is about 1991.4387522263.

The spelling of 7897704169 in words is "seven billion, eight hundred ninety-seven million, seven hundred four thousand, one hundred sixty-nine".