8372231789 has 2 divisors, whose sum is σ = 8372231790. Its totient is φ = 8372231788.

The previous prime is 8372231773. The next prime is 8372231807. The reversal of 8372231789 is 9871322738.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6638175625 + 1734056164 = 81475^2 + 41642^2 .

It is a cyclic number.

It is not a de Polignac number, because 8372231789 - 2⁴ = 8372231773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8372231729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4186115894 + 4186115895.

It is an arithmetic number, because the mean of its divisors is an integer number (4186115895).

Almost surely, 2^8372231789 is an apocalyptic number.

It is an amenable number.

8372231789 is a deficient number, since it is larger than the sum of its proper divisors (1).

8372231789 is an equidigital number, since it uses as much as digits as its factorization.

8372231789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 50.

The square root of 8372231789 is about 91499.9004862847. The cubic root of 8372231789 is about 2030.5502798526.

It can be divided in two parts, 83722 and 31789, that added together give a palindrome (115511).

The spelling of 8372231789 in words is "eight billion, three hundred seventy-two million, two hundred thirty-one thousand, seven hundred eighty-nine".