7928988 has 24 divisors (see below), whose sum is σ = 18590208. Its totient is φ = 2630256.

The previous prime is 7928969. The next prime is 7929007. The reversal of 7928988 is 8898297.

It is an interprime number because it is at equal distance from previous prime (7928969) and next prime (7929007).

It is a self number, because there is not a number n which added to its sum of digits gives 7928988.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1195 + ... + 4157.

It is an arithmetic number, because the mean of its divisors is an integer number (774592).

Almost surely, 2^7928988 is an apocalyptic number.

It is an amenable number.

7928988 is an abundant number, since it is smaller than the sum of its proper divisors (10661220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7928988 is a wasteful number, since it uses less digits than its factorization.

7928988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3193 (or 3191 counting only the distinct ones).

The product of its digits is 580608, while the sum is 51.

The square root of 7928988 is about 2815.8458764641. The cubic root of 7928988 is about 199.4064737084.

The spelling of 7928988 in words is "seven million, nine hundred twenty-eight thousand, nine hundred eighty-eight".