123747983 has 4 divisors (see below), whose sum is σ = 123801600. Its totient is φ = 123694368.

The previous prime is 123747979. The next prime is 123747997. The reversal of 123747983 is 389747321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123747983 - 2² = 123747979 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 (123747083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23183 + ... + 28016.

It is an arithmetic number, because the mean of its divisors is an integer number (30950400).

Almost surely, 2^123747983 is an apocalyptic number.

123747983 is a deficient number, since it is larger than the sum of its proper divisors (53617).

123747983 is an equidigital number, since it uses as much as digits as its factorization.

123747983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53616.

The product of its digits is 254016, while the sum is 44.

The square root of 123747983 is about 11124.2070728659. The cubic root of 123747983 is about 498.3250392786.

The spelling of 123747983 in words is "one hundred twenty-three million, seven hundred forty-seven thousand, nine hundred eighty-three".