82678446 has 24 divisors (see below), whose sum is σ = 189674784. Its totient is φ = 25938240.

The previous prime is 82678441. The next prime is 82678459. The reversal of 82678446 is 64487628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82678441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134790 + ... + 135401.

It is an arithmetic number, because the mean of its divisors is an integer number (7903116).

Almost surely, 2^82678446 is an apocalyptic number.

82678446 is an abundant number, since it is smaller than the sum of its proper divisors (106996338).

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

82678446 is a wasteful number, since it uses less digits than its factorization.

82678446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270216 (or 270213 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 82678446 is about 9092.7688852186. The cubic root of 82678446 is about 435.6430283799.

The spelling of 82678446 in words is "eighty-two million, six hundred seventy-eight thousand, four hundred forty-six".