678773406 has 32 divisors (see below), whose sum is σ = 1382584320. Its totient is φ = 222096384.

The previous prime is 678773377. The next prime is 678773441. The reversal of 678773406 is 604377876.

It is a congruent 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, 407331 + ... + 408993.

It is an arithmetic number, because the mean of its divisors is an integer number (43205760).

Almost surely, 2^678773406 is an apocalyptic number.

678773406 is an abundant number, since it is smaller than the sum of its proper divisors (703810914).

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

678773406 is a wasteful number, since it uses less digits than its factorization.

678773406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2880.

The product of its (nonzero) digits is 1185408, while the sum is 48.

The square root of 678773406 is about 26053.2801389767. The cubic root of 678773406 is about 878.8368784629.

The spelling of 678773406 in words is "six hundred seventy-eight million, seven hundred seventy-three thousand, four hundred six".