7940085 has 16 divisors (see below), whose sum is σ = 12773376. Its totient is φ = 4211648.

The previous prime is 7940077. The next prime is 7940087. The reversal of 7940085 is 5800497.

It is a cyclic number.

It is not a de Polignac number, because 7940085 - 2³ = 7940077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7940087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1612 + ... + 4298.

It is an arithmetic number, because the mean of its divisors is an integer number (798336).

Almost surely, 2^7940085 is an apocalyptic number.

It is an amenable number.

7940085 is a deficient number, since it is larger than the sum of its proper divisors (4833291).

7940085 is a wasteful number, since it uses less digits than its factorization.

7940085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2892.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 7940085 is about 2817.8156433663. The cubic root of 7940085 is about 199.4994566602.

The spelling of 7940085 in words is "seven million, nine hundred forty thousand, eighty-five".