7964940 has 24 divisors (see below), whose sum is σ = 22302000. Its totient is φ = 2123968.

The previous prime is 7964939. The next prime is 7964951. The reversal of 7964940 is 494697.

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, 66315 + ... + 66434.

It is an arithmetic number, because the mean of its divisors is an integer number (929250).

Almost surely, 2^7964940 is an apocalyptic number.

It is an amenable number.

7964940 is an abundant number, since it is smaller than the sum of its proper divisors (14337060).

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

7964940 is a wasteful number, since it uses less digits than its factorization.

7964940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132761 (or 132759 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 7964940 is about 2822.2225284339. Note that the first 3 decimals coincide. The cubic root of 7964940 is about 199.7074054843.

The spelling of 7964940 in words is "seven million, nine hundred sixty-four thousand, nine hundred forty".