678130585 has 24 divisors (see below), whose sum is σ = 907115328. Its totient is φ = 486208800.

The previous prime is 678130573. The next prime is 678130619. The reversal of 678130585 is 585031876.

It is not a de Polignac number, because 678130585 - 2⁵ = 678130553 is a prime.

It is a super-2 number, since 2×678130585² = 919722180624884450, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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, 35062 + ... + 50848.

It is an arithmetic number, because the mean of its divisors is an integer number (37796472).

Almost surely, 2^678130585 is an apocalyptic number.

It is an amenable number.

678130585 is a deficient number, since it is larger than the sum of its proper divisors (228984743).

678130585 is a wasteful number, since it uses less digits than its factorization.

678130585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15885 (or 15874 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 678130585 is about 26040.9405552104. The cubic root of 678130585 is about 878.5593615835.

The spelling of 678130585 in words is "six hundred seventy-eight million, one hundred thirty thousand, five hundred eighty-five".