7916660 has 24 divisors (see below), whose sum is σ = 16696680. Its totient is φ = 3153024.

The previous prime is 7916659. The next prime is 7916677. The reversal of 7916660 is 666197.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 110224 + 7806436 = 332^2 + 2794^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7916660.

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, 4826 + ... + 6254.

It is an arithmetic number, because the mean of its divisors is an integer number (695695).

Almost surely, 2^7916660 is an apocalyptic number.

It is an amenable number.

7916660 is an abundant number, since it is smaller than the sum of its proper divisors (8780020).

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

7916660 is a wasteful number, since it uses less digits than its factorization.

7916660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715 (or 1713 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 7916660 is about 2813.6559846577. The cubic root of 7916660 is about 199.3030742936.

The spelling of 7916660 in words is "seven million, nine hundred sixteen thousand, six hundred sixty".