8272278 has 72 divisors (see below), whose sum is σ = 21287448. Its totient is φ = 2314368.

The previous prime is 8272273. The next prime is 8272301. The reversal of 8272278 is 8722728.

8272278 is a nontrivial binomial coefficient, being equal to C(4068, 2).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8272273) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 73150 + ... + 73262.

It is an arithmetic number, because the mean of its divisors is an integer number (295659).

Almost surely, 2^8272278 is an apocalyptic number.

8272278 is the 4067-th triangular number and also the 2034-th hexagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8272278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10643724).

8272278 is an abundant number, since it is smaller than the sum of its proper divisors (13015170).

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

8272278 is a wasteful number, since it uses less digits than its factorization.

8272278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 208 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 8272278 is about 2876.1568107459. The cubic root of 8272278 is about 202.2437178553.

The spelling of 8272278 in words is "eight million, two hundred seventy-two thousand, two hundred seventy-eight".