7640085 has 16 divisors (see below), whose sum is σ = 12485376. Its totient is φ = 3987648.

The previous prime is 7640069. The next prime is 7640131. The reversal of 7640085 is 5800467.

It is a happy number.

It is not a de Polignac number, because 7640085 - 2⁴ = 7640069 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4714 + ... + 6123.

It is an arithmetic number, because the mean of its divisors is an integer number (780336).

Almost surely, 2^7640085 is an apocalyptic number.

It is an amenable number.

7640085 is a deficient number, since it is larger than the sum of its proper divisors (4845291).

7640085 is a wasteful number, since it uses less digits than its factorization.

7640085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10892.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 7640085 is about 2764.0703681346. The cubic root of 7640085 is about 196.9545705065.

The spelling of 7640085 in words is "seven million, six hundred forty thousand, eighty-five".