7938660 has 96 divisors (see below), whose sum is σ = 24216192. Its totient is φ = 1935360.

The previous prime is 7938649. The next prime is 7938727. The reversal of 7938660 is 668397.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43770 + ... + 43950.

It is an arithmetic number, because the mean of its divisors is an integer number (252252).

Almost surely, 2^7938660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7938660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12108096).

7938660 is an abundant number, since it is smaller than the sum of its proper divisors (16277532).

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

7938660 is a wasteful number, since it uses less digits than its factorization.

7938660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 251 counting only the distinct ones).

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

The square root of 7938660 is about 2817.5627765855. The cubic root of 7938660 is about 199.4875212828.

It can be divided in two parts, 793 and 8660, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 7938660 in words is "seven million, nine hundred thirty-eight thousand, six hundred sixty".