82741287 has 16 divisors (see below), whose sum is σ = 114151392. Its totient is φ = 53268480.

The previous prime is 82741283. The next prime is 82741297. The reversal of 82741287 is 78214728.

It is not a de Polignac number, because 82741287 - 2² = 82741283 is a prime.

It is a super-2 number, since 2×82741287² = 13692241148832738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82741283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12487 + ... + 17927.

It is an arithmetic number, because the mean of its divisors is an integer number (7134462).

Almost surely, 2^82741287 is an apocalyptic number.

82741287 is a deficient number, since it is larger than the sum of its proper divisors (31410105).

82741287 is a wasteful number, since it uses less digits than its factorization.

82741287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5618.

The product of its digits is 50176, while the sum is 39.

The square root of 82741287 is about 9096.2237769307. The cubic root of 82741287 is about 435.7533727799.

It can be divided in two parts, 82741 and 287, that added together give a triangular number (83028 = T₄₀₇).

The spelling of 82741287 in words is "eighty-two million, seven hundred forty-one thousand, two hundred eighty-seven".