7938680 has 32 divisors (see below), whose sum is σ = 18640800. Its totient is φ = 3037056.

The previous prime is 7938649. The next prime is 7938727. The reversal of 7938680 is 868397.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3395 + ... + 5234.

It is an arithmetic number, because the mean of its divisors is an integer number (582525).

Almost surely, 2^7938680 is an apocalyptic number.

It is an amenable number.

7938680 is an abundant number, since it is smaller than the sum of its proper divisors (10702120).

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

7938680 is a wasteful number, since it uses less digits than its factorization.

7938680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8663 (or 8659 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 7938680 is about 2817.5663257499. The cubic root of 7938680 is about 199.4876888067.

The spelling of 7938680 in words is "seven million, nine hundred thirty-eight thousand, six hundred eighty".