7932985 has 16 divisors (see below), whose sum is σ = 9879696. Its totient is φ = 6110208.

The previous prime is 7932973. The next prime is 7933021. The reversal of 7932985 is 5892397.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 182329 + 7750656 = 427^2 + 2784^2 .

It is a cyclic number.

It is not a de Polignac number, because 7932985 - 2⁷ = 7932857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25189 + ... + 25501.

It is an arithmetic number, because the mean of its divisors is an integer number (617481).

Almost surely, 2^7932985 is an apocalyptic number.

It is an amenable number.

7932985 is a deficient number, since it is larger than the sum of its proper divisors (1946711).

7932985 is a wasteful number, since it uses less digits than its factorization.

7932985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492.

The product of its digits is 136080, while the sum is 43.

The square root of 7932985 is about 2816.5555204895. Note that the first 4 decimals coincide. The cubic root of 7932985 is about 199.4399749903.

The spelling of 7932985 in words is "seven million, nine hundred thirty-two thousand, nine hundred eighty-five".