82543742 has 16 divisors (see below), whose sum is σ = 127319472. Its totient is φ = 40111680.

The previous prime is 82543729. The next prime is 82543753. The reversal of 82543742 is 24734528.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21428 + ... + 24984.

It is an arithmetic number, because the mean of its divisors is an integer number (7957467).

Almost surely, 2^82543742 is an apocalyptic number.

82543742 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

82543742 is a deficient number, since it is larger than the sum of its proper divisors (44775730).

82543742 is a wasteful number, since it uses less digits than its factorization.

82543742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3883.

The product of its digits is 53760, while the sum is 35.

The square root of 82543742 is about 9085.3586610546. The cubic root of 82543742 is about 435.4063090577.

The spelling of 82543742 in words is "eighty-two million, five hundred forty-three thousand, seven hundred forty-two".