623868774 has 8 divisors (see below), whose sum is σ = 1247737560. Its totient is φ = 207956256.

The previous prime is 623868733. The next prime is 623868779. The reversal of 623868774 is 477868326.

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

623868774 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623868779) 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, 51989059 + ... + 51989070.

It is an arithmetic number, because the mean of its divisors is an integer number (155967195).

Almost surely, 2^623868774 is an apocalyptic number.

623868774 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.

623868774 is a wasteful number, since it uses less digits than its factorization.

623868774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103978134.

The product of its digits is 2709504, while the sum is 51.

The square root of 623868774 is about 24977.3652333468. The cubic root of 623868774 is about 854.4718300131.

The spelling of 623868774 in words is "six hundred twenty-three million, eight hundred sixty-eight thousand, seven hundred seventy-four".