82891542 has 8 divisors (see below), whose sum is σ = 165783096. Its totient is φ = 27630512.

The previous prime is 82891537. The next prime is 82891559. The reversal of 82891542 is 24519828.

It is a sphenic number, since it is the product of 3 distinct primes.

82891542 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 82891542.

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, 6907623 + ... + 6907634.

It is an arithmetic number, because the mean of its divisors is an integer number (20722887).

Almost surely, 2^82891542 is an apocalyptic number.

82891542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

82891542 is a wasteful number, since it uses less digits than its factorization.

82891542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13815262.

The product of its digits is 46080, while the sum is 39.

The square root of 82891542 is about 9104.4792272815. The cubic root of 82891542 is about 436.0169837393.

The spelling of 82891542 in words is "eighty-two million, eight hundred ninety-one thousand, five hundred forty-two".