7691985 has 24 divisors (see below), whose sum is σ = 15238080. Its totient is φ = 3516192.

The previous prime is 7691977. The next prime is 7692001. The reversal of 7691985 is 5891967.

It is not a de Polignac number, because 7691985 - 2³ = 7691977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 7691985.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11895 + ... + 12524.

It is an arithmetic number, because the mean of its divisors is an integer number (634920).

Almost surely, 2^7691985 is an apocalyptic number.

It is an amenable number.

7691985 is a deficient number, since it is larger than the sum of its proper divisors (7546095).

7691985 is a wasteful number, since it uses less digits than its factorization.

7691985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24437 (or 24434 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The square root of 7691985 is about 2773.4428063330. The cubic root of 7691985 is about 197.3995429940.

The spelling of 7691985 in words is "seven million, six hundred ninety-one thousand, nine hundred eighty-five".