7217280969 has 4 divisors (see below), whose sum is σ = 9623041296. Its totient is φ = 4811520644.

The previous prime is 7217280947. The next prime is 7217280977. The reversal of 7217280969 is 9690827127.

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 7217280969 - 2⁹ = 7217280457 is a prime.

It is a super-2 number, since 2×7217280969² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7217280869) 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, 1202880159 + ... + 1202880164.

It is an arithmetic number, because the mean of its divisors is an integer number (2405760324).

Almost surely, 2^7217280969 is an apocalyptic number.

It is an amenable number.

7217280969 is a deficient number, since it is larger than the sum of its proper divisors (2405760327).

7217280969 is a wasteful number, since it uses less digits than its factorization.

7217280969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405760326.

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 7217280969 is about 84954.5818011012. The cubic root of 7217280969 is about 1932.5224045329.

The spelling of 7217280969 in words is "seven billion, two hundred seventeen million, two hundred eighty thousand, nine hundred sixty-nine".