82743580 has 12 divisors (see below), whose sum is σ = 173761560. Its totient is φ = 33097424.

The previous prime is 82743571. The next prime is 82743601. The reversal of 82743580 is 8534728.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2068570 + ... + 2068609.

It is an arithmetic number, because the mean of its divisors is an integer number (14480130).

Almost surely, 2^82743580 is an apocalyptic number.

It is an amenable number.

82743580 is an abundant number, since it is smaller than the sum of its proper divisors (91017980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82743580 is a wasteful number, since it uses less digits than its factorization.

82743580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4137188 (or 4137186 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 82743580 is about 9096.3498173718. The cubic root of 82743580 is about 435.7573980708.

The spelling of 82743580 in words is "eighty-two million, seven hundred forty-three thousand, five hundred eighty".