7988855 has 32 divisors (see below), whose sum is σ = 11673600. Its totient is φ = 5132160.

The previous prime is 7988839. The next prime is 7988857. The reversal of 7988855 is 5588897.

It is not a de Polignac number, because 7988855 - 2⁴ = 7988839 is a prime.

It is a super-2 number, since 2×7988855² = 127643608422050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7988857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40046 + ... + 40244.

It is an arithmetic number, because the mean of its divisors is an integer number (364800).

Almost surely, 2^7988855 is an apocalyptic number.

7988855 is a deficient number, since it is larger than the sum of its proper divisors (3684745).

7988855 is a wasteful number, since it uses less digits than its factorization.

7988855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279.

The product of its digits is 806400, while the sum is 50.

The square root of 7988855 is about 2826.4562618233. The cubic root of 7988855 is about 199.9070818378.

The spelling of 7988855 in words is "seven million, nine hundred eighty-eight thousand, eight hundred fifty-five".