423737663 has 2 divisors, whose sum is σ = 423737664. Its totient is φ = 423737662.

The previous prime is 423737641. The next prime is 423737689. The reversal of 423737663 is 366737324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423737663 - 2⁶ = 423737599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423737663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423737623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211868831 + 211868832.

It is an arithmetic number, because the mean of its divisors is an integer number (211868832).

Almost surely, 2^423737663 is an apocalyptic number.

423737663 is a deficient number, since it is larger than the sum of its proper divisors (1).

423737663 is an equidigital number, since it uses as much as digits as its factorization.

423737663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 41.

The square root of 423737663 is about 20584.8891908604. The cubic root of 423737663 is about 751.1021797692.

The spelling of 423737663 in words is "four hundred twenty-three million, seven hundred thirty-seven thousand, six hundred sixty-three".