678842610 has 32 divisors (see below), whose sum is σ = 1635040512. Its totient is φ = 180378240.

The previous prime is 678842609. The next prime is 678842653. The reversal of 678842610 is 16248876.

It is a super-2 number, since 2×678842610² = 921654578303224200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31834 + ... + 48693.

It is an arithmetic number, because the mean of its divisors is an integer number (51095016).

Almost surely, 2^678842610 is an apocalyptic number.

678842610 is an abundant number, since it is smaller than the sum of its proper divisors (956197902).

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

678842610 is a wasteful number, since it uses less digits than its factorization.

678842610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80818.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 678842610 is about 26054.6082296395. The cubic root of 678842610 is about 878.8667445714.

The spelling of 678842610 in words is "six hundred seventy-eight million, eight hundred forty-two thousand, six hundred ten".