5685978 has 16 divisors (see below), whose sum is σ = 11970720. Its totient is φ = 1795536.

The previous prime is 5685971. The next prime is 5686033. The reversal of 5685978 is 8795865.

It is a d-powerful number, because it can be written as 5⁸ + 6 + 8 + 5⁸ + 9⁷ + 7⁶ + 8⁴ .

It is not an unprimeable number, because it can be changed into a prime (5685971) 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, 24825 + ... + 25052.

It is an arithmetic number, because the mean of its divisors is an integer number (748170).

Almost surely, 2^5685978 is an apocalyptic number.

5685978 is an abundant number, since it is smaller than the sum of its proper divisors (6284742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5685978 is a wasteful number, since it uses less digits than its factorization.

5685978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49901.

The product of its digits is 604800, while the sum is 48.

The square root of 5685978 is about 2384.5288842872. The cubic root of 5685978 is about 178.4850005835.

The spelling of 5685978 in words is "five million, six hundred eighty-five thousand, nine hundred seventy-eight".