623943073 has 16 divisors (see below), whose sum is σ = 680311296. Its totient is φ = 568817280.

The previous prime is 623943049. The next prime is 623943119. The reversal of 623943073 is 370349326.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-623943073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623940073) 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 15 ways as a sum of consecutive naturals, for example, 396378 + ... + 397948.

It is an arithmetic number, because the mean of its divisors is an integer number (42519456).

Almost surely, 2^623943073 is an apocalyptic number.

It is an amenable number.

623943073 is a deficient number, since it is larger than the sum of its proper divisors (56368223).

623943073 is a wasteful number, since it uses less digits than its factorization.

623943073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944.

The product of its (nonzero) digits is 81648, while the sum is 37.

The square root of 623943073 is about 24978.8525156781. The cubic root of 623943073 is about 854.5057494766.

The spelling of 623943073 in words is "six hundred twenty-three million, nine hundred forty-three thousand, seventy-three".