7980220897 has 4 divisors (see below), whose sum is σ = 8705695536. Its totient is φ = 7254746260.

The previous prime is 7980220889. The next prime is 7980220901.

7980220897 is nontrivially palindromic in base 10.

7980220897 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7980220897 - 2³ = 7980220889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7980220097) 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, 362737303 + ... + 362737324.

It is an arithmetic number, because the mean of its divisors is an integer number (2176423884).

Almost surely, 2^7980220897 is an apocalyptic number.

It is an amenable number.

7980220897 is a deficient number, since it is larger than the sum of its proper divisors (725474639).

7980220897 is a wasteful number, since it uses less digits than its factorization.

7980220897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725474638.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 7980220897 is about 89332.0821261880. The cubic root of 7980220897 is about 1998.3503811696.

The spelling of 7980220897 in words is "seven billion, nine hundred eighty million, two hundred twenty thousand, eight hundred ninety-seven".