83723111247 has 8 divisors (see below), whose sum is σ = 111633571456. Its totient is φ = 55814029272.

The previous prime is 83723111221. The next prime is 83723111261. The reversal of 83723111247 is 74211132738.

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

It is not a de Polignac number, because 83723111247 - 2⁶ = 83723111183 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 (83723111347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193333 + ... + 452574.

It is an arithmetic number, because the mean of its divisors is an integer number (13954196432).

Almost surely, 2^83723111247 is an apocalyptic number.

83723111247 is a deficient number, since it is larger than the sum of its proper divisors (27910460209).

83723111247 is a wasteful number, since it uses less digits than its factorization.

83723111247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689117.

The product of its digits is 56448, while the sum is 39.

The spelling of 83723111247 in words is "eighty-three billion, seven hundred twenty-three million, one hundred eleven thousand, two hundred forty-seven".