623304678 has 8 divisors (see below), whose sum is σ = 1246609368. Its totient is φ = 207768224.

The previous prime is 623304599. The next prime is 623304679. The reversal of 623304678 is 876403326.

It is a sphenic number, since it is the product of 3 distinct primes.

623304678 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623304679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51942051 + ... + 51942062.

It is an arithmetic number, because the mean of its divisors is an integer number (155826171).

Almost surely, 2^623304678 is an apocalyptic number.

623304678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

623304678 is a wasteful number, since it uses less digits than its factorization.

623304678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103884118.

The product of its (nonzero) digits is 145152, while the sum is 39.

The square root of 623304678 is about 24966.0705358292. The cubic root of 623304678 is about 854.2142173499.

The spelling of 623304678 in words is "six hundred twenty-three million, three hundred four thousand, six hundred seventy-eight".