7988895 has 48 divisors (see below), whose sum is σ = 15297120. Its totient is φ = 3942144.

The previous prime is 7988857. The next prime is 7988899. The reversal of 7988895 is 5988897.

It is not a de Polignac number, because 7988895 - 2⁷ = 7988767 is a prime.

Its product of digits (1451520) is a multiple of the sum of its prime divisors (84).

It is a congruent number.

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

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135376 + ... + 135434.

It is an arithmetic number, because the mean of its divisors is an integer number (318690).

Almost surely, 2^7988895 is an apocalyptic number.

7988895 is a deficient number, since it is larger than the sum of its proper divisors (7308225).

7988895 is a wasteful number, since it uses less digits than its factorization.

7988895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 84 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 54.

The square root of 7988895 is about 2826.4633378128. The cubic root of 7988895 is about 199.9074154805.

The spelling of 7988895 in words is "seven million, nine hundred eighty-eight thousand, eight hundred ninety-five".