623894394 has 8 divisors (see below), whose sum is σ = 1247788800. Its totient is φ = 207964796.

The previous prime is 623894377. The next prime is 623894413. The reversal of 623894394 is 493498326.

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

623894394 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51991194 + ... + 51991205.

It is an arithmetic number, because the mean of its divisors is an integer number (155973600).

Almost surely, 2^623894394 is an apocalyptic number.

623894394 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.

623894394 is a wasteful number, since it uses less digits than its factorization.

623894394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103982404.

The product of its digits is 1119744, while the sum is 48.

The square root of 623894394 is about 24977.8780924241. The cubic root of 623894394 is about 854.4835265266.

The spelling of 623894394 in words is "six hundred twenty-three million, eight hundred ninety-four thousand, three hundred ninety-four".