82357278 has 16 divisors (see below), whose sum is σ = 165095040. Its totient is φ = 27389016.

The previous prime is 82357243. The next prime is 82357279. The reversal of 82357278 is 87275328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82357279) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13000 + ... + 18267.

It is an arithmetic number, because the mean of its divisors is an integer number (10318440).

Almost surely, 2^82357278 is an apocalyptic number.

82357278 is an abundant number, since it is smaller than the sum of its proper divisors (82737762).

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

82357278 is a wasteful number, since it uses less digits than its factorization.

82357278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31711.

The product of its digits is 188160, while the sum is 42.

The square root of 82357278 is about 9075.0910739232. The cubic root of 82357278 is about 435.0782049907.

The spelling of 82357278 in words is "eighty-two million, three hundred fifty-seven thousand, two hundred seventy-eight".