82444287 has 16 divisors (see below), whose sum is σ = 118405760. Its totient is φ = 50857632.

The previous prime is 82444279. The next prime is 82444289. The reversal of 82444287 is 78244428.

It is not a de Polignac number, because 82444287 - 2³ = 82444279 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 (82444289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14368 + ... + 19269.

It is an arithmetic number, because the mean of its divisors is an integer number (7400360).

Almost surely, 2^82444287 is an apocalyptic number.

82444287 is a deficient number, since it is larger than the sum of its proper divisors (35961473).

82444287 is a wasteful number, since it uses less digits than its factorization.

82444287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33702.

The product of its digits is 114688, while the sum is 39.

The square root of 82444287 is about 9079.8836446289. The cubic root of 82444287 is about 435.2313685280.

The spelling of 82444287 in words is "eighty-two million, four hundred forty-four thousand, two hundred eighty-seven".