82187365 has 16 divisors (see below), whose sum is σ = 108219888. Its totient is φ = 59544576.

The previous prime is 82187353. The next prime is 82187377. The reversal of 82187365 is 56378128.

It is an interprime number because it is at equal distance from previous prime (82187353) and next prime (82187377).

It can be written as a sum of positive squares in 8 ways, for example, as 14273284 + 67914081 = 3778^2 + 8241^2 .

It is not a de Polignac number, because 82187365 - 2¹⁹ = 81663077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8484 + ... + 15373.

It is an arithmetic number, because the mean of its divisors is an integer number (6763743).

Almost surely, 2^82187365 is an apocalyptic number.

It is an amenable number.

82187365 is a deficient number, since it is larger than the sum of its proper divisors (26032523).

82187365 is a wasteful number, since it uses less digits than its factorization.

82187365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23928.

The product of its digits is 80640, while the sum is 40.

The square root of 82187365 is about 9065.7247366110. The cubic root of 82187365 is about 434.7787927136.

The spelling of 82187365 in words is "eighty-two million, one hundred eighty-seven thousand, three hundred sixty-five".