7981764 has 24 divisors (see below), whose sum is σ = 21284928. Its totient is φ = 2280480.

The previous prime is 7981717. The next prime is 7981783. The reversal of 7981764 is 4671897.

7981764 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 47427 + ... + 47594.

It is an arithmetic number, because the mean of its divisors is an integer number (886872).

Almost surely, 2^7981764 is an apocalyptic number.

It is an amenable number.

7981764 is an abundant number, since it is smaller than the sum of its proper divisors (13303164).

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

7981764 is a wasteful number, since it uses less digits than its factorization.

7981764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95035 (or 95033 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 7981764 is about 2825.2015857280. The cubic root of 7981764 is about 199.8479177175.

The spelling of 7981764 in words is "seven million, nine hundred eighty-one thousand, seven hundred sixty-four".