7988897 has 4 divisors (see below), whose sum is σ = 9130176. Its totient is φ = 6847620.

The previous prime is 7988857. The next prime is 7988899.

7988897 is nontrivially palindromic in base 10.

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 7988897 - 2⁸ = 7988641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7988899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 570629 + ... + 570642.

It is an arithmetic number, because the mean of its divisors is an integer number (2282544).

Almost surely, 2^7988897 is an apocalyptic number.

It is an amenable number.

7988897 is a deficient number, since it is larger than the sum of its proper divisors (1141279).

7988897 is a wasteful number, since it uses less digits than its factorization.

7988897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141278.

The product of its digits is 2032128, while the sum is 56.

The square root of 7988897 is about 2826.4636916118. The cubic root of 7988897 is about 199.9074321626.

The spelling of 7988897 in words is "seven million, nine hundred eighty-eight thousand, eight hundred ninety-seven".