678553606 has 32 divisors (see below), whose sum is σ = 1124105472. Its totient is φ = 305786880.

The previous prime is 678553573. The next prime is 678553627. The reversal of 678553606 is 606355876.

It is a happy number.

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, 98920 + ... + 105556.

It is an arithmetic number, because the mean of its divisors is an integer number (35128296).

Almost surely, 2^678553606 is an apocalyptic number.

678553606 is a deficient number, since it is larger than the sum of its proper divisors (445551866).

678553606 is a wasteful number, since it uses less digits than its factorization.

678553606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6784.

The product of its (nonzero) digits is 907200, while the sum is 46.

The square root of 678553606 is about 26049.0615186037. The cubic root of 678553606 is about 878.7420067436.

The spelling of 678553606 in words is "six hundred seventy-eight million, five hundred fifty-three thousand, six hundred six".