623430390997 has 8 divisors (see below), whose sum is σ = 661592848896. Its totient is φ = 585433497792.

The previous prime is 623430390991. The next prime is 623430391009. The reversal of 623430390997 is 799093034326.

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

It is not a de Polignac number, because 623430390997 - 2²³ = 623422002389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623430390991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41383413 + ... + 41398474.

It is an arithmetic number, because the mean of its divisors is an integer number (82699106112).

Almost surely, 2^623430390997 is an apocalyptic number.

It is an amenable number.

623430390997 is a deficient number, since it is larger than the sum of its proper divisors (38162457899).

623430390997 is a wasteful number, since it uses less digits than its factorization.

623430390997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82782347.

The product of its (nonzero) digits is 6613488, while the sum is 55.

The spelling of 623430390997 in words is "six hundred twenty-three billion, four hundred thirty million, three hundred ninety thousand, nine hundred ninety-seven".