7005640 has 16 divisors (see below), whose sum is σ = 15762780. Its totient is φ = 2802240.

The previous prime is 7005637. The next prime is 7005643. The reversal of 7005640 is 465007.

It is an interprime number because it is at equal distance from previous prime (7005637) and next prime (7005643).

It can be written as a sum of positive squares in 2 ways, for example, as 6749604 + 256036 = 2598^2 + 506^2 .

It is not an unprimeable number, because it can be changed into a prime (7005643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87531 + ... + 87610.

Almost surely, 2^7005640 is an apocalyptic number.

It is an amenable number.

7005640 is an abundant number, since it is smaller than the sum of its proper divisors (8757140).

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

7005640 is a wasteful number, since it uses less digits than its factorization.

7005640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175152 (or 175148 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 7005640 is about 2646.8169562703. The cubic root of 7005640 is about 191.3444803514.

The spelling of 7005640 in words is "seven million, five thousand, six hundred forty".