82371769 has 2 divisors, whose sum is σ = 82371770. Its totient is φ = 82371768.

The previous prime is 82371727. The next prime is 82371787. The reversal of 82371769 is 96717328.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81216144 + 1155625 = 9012^2 + 1075^2 .

It is a cyclic number.

It is not a de Polignac number, because 82371769 - 2¹³ = 82363577 is a prime.

It is a super-2 number, since 2×82371769² = 13570216656378722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (82371719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41185884 + 41185885.

It is an arithmetic number, because the mean of its divisors is an integer number (41185885).

Almost surely, 2^82371769 is an apocalyptic number.

It is an amenable number.

82371769 is a deficient number, since it is larger than the sum of its proper divisors (1).

82371769 is an equidigital number, since it uses as much as digits as its factorization.

82371769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 43.

The square root of 82371769 is about 9075.8894329977. The cubic root of 82371769 is about 435.1037212482.

The spelling of 82371769 in words is "eighty-two million, three hundred seventy-one thousand, seven hundred sixty-nine".