7867985 has 8 divisors (see below), whose sum is σ = 9555840. Its totient is φ = 6218224.

The previous prime is 7867973. The next prime is 7867987. The reversal of 7867985 is 5897687.

It is a happy number.

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 7867985 - 2⁶ = 7867921 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7867987) 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, 9065 + ... + 9894.

It is an arithmetic number, because the mean of its divisors is an integer number (1194480).

Almost surely, 2^7867985 is an apocalyptic number.

It is an amenable number.

7867985 is a deficient number, since it is larger than the sum of its proper divisors (1687855).

7867985 is a wasteful number, since it uses less digits than its factorization.

7867985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19047.

The product of its digits is 846720, while the sum is 50.

The square root of 7867985 is about 2804.9928698662. The cubic root of 7867985 is about 198.8937675299.

The spelling of 7867985 in words is "seven million, eight hundred sixty-seven thousand, nine hundred eighty-five".