123799963 has 8 divisors (see below), whose sum is σ = 142808832. Its totient is φ = 105121896.

The previous prime is 123799943. The next prime is 123799969. The reversal of 123799963 is 369997321.

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

It is a cyclic number.

It is not a de Polignac number, because 123799963 - 2¹³ = 123791771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123799969) 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 7 ways as a sum of consecutive naturals, for example, 81895 + ... + 83392.

It is an arithmetic number, because the mean of its divisors is an integer number (17851104).

Almost surely, 2^123799963 is an apocalyptic number.

123799963 is a deficient number, since it is larger than the sum of its proper divisors (19008869).

123799963 is a wasteful number, since it uses less digits than its factorization.

123799963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165401.

The product of its digits is 551124, while the sum is 49.

The square root of 123799963 is about 11126.5431738703. The cubic root of 123799963 is about 498.3948028657.

The spelling of 123799963 in words is "one hundred twenty-three million, seven hundred ninety-nine thousand, nine hundred sixty-three".