623404327 has 48 divisors (see below), whose sum is σ = 809533440. Its totient is φ = 469497600.

The previous prime is 623404321. The next prime is 623404337. The reversal of 623404327 is 723404326.

It is not a de Polignac number, because 623404327 - 2³ = 623404319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623404321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3263802 + ... + 3263992.

It is an arithmetic number, because the mean of its divisors is an integer number (16865280).

Almost surely, 2^623404327 is an apocalyptic number.

623404327 is a deficient number, since it is larger than the sum of its proper divisors (186129113).

623404327 is a wasteful number, since it uses less digits than its factorization.

623404327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 623404327 is about 24968.0661445776. The cubic root of 623404327 is about 854.2597365852.

Subtracting 623404327 from its reverse (723404326), we obtain a palindrome (99999999).

The spelling of 623404327 in words is "six hundred twenty-three million, four hundred four thousand, three hundred twenty-seven".