7680985 has 8 divisors (see below), whose sum is σ = 9926280. Its totient is φ = 5672064.

The previous prime is 7680979. The next prime is 7680989. The reversal of 7680985 is 5890867.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 266256 + 7414729 = 516^2 + 2723^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7680985 - 2¹³ = 7672793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7680989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59020 + ... + 59149.

It is an arithmetic number, because the mean of its divisors is an integer number (1240785).

Almost surely, 2^7680985 is an apocalyptic number.

It is an amenable number.

7680985 is a deficient number, since it is larger than the sum of its proper divisors (2245295).

7680985 is a wasteful number, since it uses less digits than its factorization.

7680985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118187.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 7680985 is about 2771.4590020421. The cubic root of 7680985 is about 197.3054003737.

The spelling of 7680985 in words is "seven million, six hundred eighty thousand, nine hundred eighty-five".