82267878 has 32 divisors (see below), whose sum is σ = 205136640. Its totient is φ = 21368160.

The previous prime is 82267877. The next prime is 82267919. The reversal of 82267878 is 87876228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82267877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88573 + ... + 89496.

It is an arithmetic number, because the mean of its divisors is an integer number (6410520).

Almost surely, 2^82267878 is an apocalyptic number.

82267878 is an abundant number, since it is smaller than the sum of its proper divisors (122868762).

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

82267878 is a wasteful number, since it uses less digits than its factorization.

82267878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178092.

The product of its digits is 602112, while the sum is 48.

The square root of 82267878 is about 9070.1641660998. The cubic root of 82267878 is about 434.9207201272.

The spelling of 82267878 in words is "eighty-two million, two hundred sixty-seven thousand, eight hundred seventy-eight".