623046993 has 16 divisors (see below), whose sum is σ = 893061120. Its totient is φ = 385129296.

The previous prime is 623046973. The next prime is 623047001. The reversal of 623046993 is 399640326.

It is not a de Polignac number, because 623046993 - 2⁵ = 623046961 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (623046953) 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, 113605 + ... + 118962.

It is an arithmetic number, because the mean of its divisors is an integer number (55816320).

Almost surely, 2^623046993 is an apocalyptic number.

It is an amenable number.

623046993 is a deficient number, since it is larger than the sum of its proper divisors (270014127).

623046993 is a wasteful number, since it uses less digits than its factorization.

623046993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232636.

The product of its (nonzero) digits is 209952, while the sum is 42.

The square root of 623046993 is about 24960.9092983409. The cubic root of 623046993 is about 854.0964854504.

The spelling of 623046993 in words is "six hundred twenty-three million, forty-six thousand, nine hundred ninety-three".