8278231 has 16 divisors (see below), whose sum is σ = 9313920. Its totient is φ = 7308000.

The previous prime is 8278211. The next prime is 8278247. The reversal of 8278231 is 1328728.

It is a cyclic number.

It is not a de Polignac number, because 8278231 - 2⁵ = 8278199 is a prime.

It is a super-2 number, since 2×8278231² = 137058216978722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8278193 and 8278202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8278211) 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, 32856 + ... + 33106.

It is an arithmetic number, because the mean of its divisors is an integer number (582120).

Almost surely, 2^8278231 is an apocalyptic number.

8278231 is a deficient number, since it is larger than the sum of its proper divisors (1035689).

8278231 is a wasteful number, since it uses less digits than its factorization.

8278231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366.

The product of its digits is 5376, while the sum is 31.

The square root of 8278231 is about 2877.1915125692. The cubic root of 8278231 is about 202.2922199392.

The spelling of 8278231 in words is "eight million, two hundred seventy-eight thousand, two hundred thirty-one".