82781114 has 16 divisors (see below), whose sum is σ = 134141280. Its totient is φ = 38087280.

The previous prime is 82781107. The next prime is 82781123. The reversal of 82781114 is 41118728.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3797 + ... + 13415.

It is an arithmetic number, because the mean of its divisors is an integer number (8383830).

Almost surely, 2^82781114 is an apocalyptic number.

82781114 is a deficient number, since it is larger than the sum of its proper divisors (51360166).

82781114 is a wasteful number, since it uses less digits than its factorization.

82781114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9965.

The product of its digits is 3584, while the sum is 32.

The square root of 82781114 is about 9098.4127187109. The cubic root of 82781114 is about 435.8232772835.

The spelling of 82781114 in words is "eighty-two million, seven hundred eighty-one thousand, one hundred fourteen".