82840860 has 48 divisors (see below), whose sum is σ = 257728800. Its totient is φ = 22090752.

The previous prime is 82840859. The next prime is 82840861. The reversal of 82840860 is 6804828.

It is an interprime number because it is at equal distance from previous prime (82840859) and next prime (82840861).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82840861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76165 + ... + 77244.

It is an arithmetic number, because the mean of its divisors is an integer number (5369350).

Almost surely, 2^82840860 is an apocalyptic number.

It is an amenable number.

82840860 is an abundant number, since it is smaller than the sum of its proper divisors (174887940).

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

82840860 is a wasteful number, since it uses less digits than its factorization.

82840860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153427 (or 153419 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 82840860 is about 9101.6954464539. The cubic root of 82840860 is about 435.9281016589.

The spelling of 82840860 in words is "eighty-two million, eight hundred forty thousand, eight hundred sixty".