82541978 has 8 divisors (see below), whose sum is σ = 123856320. Its totient is φ = 41256540.

The previous prime is 82541971. The next prime is 82541981. The reversal of 82541978 is 87914528.

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

It is not an unprimeable number, because it can be changed into a prime (82541971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2573 + ... + 13103.

It is an arithmetic number, because the mean of its divisors is an integer number (15482040).

Almost surely, 2^82541978 is an apocalyptic number.

82541978 is a deficient number, since it is larger than the sum of its proper divisors (41314342).

82541978 is a wasteful number, since it uses less digits than its factorization.

82541978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14452.

The product of its digits is 161280, while the sum is 44.

The square root of 82541978 is about 9085.2615812645. The cubic root of 82541978 is about 435.4032074206.

The spelling of 82541978 in words is "eighty-two million, five hundred forty-one thousand, nine hundred seventy-eight".