8278772 has 12 divisors (see below), whose sum is σ = 14535780. Its totient is φ = 4125696.

The previous prime is 8278763. The next prime is 8278783. The reversal of 8278772 is 2778728.

It can be written as a sum of positive squares in 2 ways, for example, as 583696 + 7695076 = 764^2 + 2774^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1997 + ... + 4532.

It is an arithmetic number, because the mean of its divisors is an integer number (1211315).

Almost surely, 2^8278772 is an apocalyptic number.

It is an amenable number.

8278772 is a deficient number, since it is larger than the sum of its proper divisors (6257008).

8278772 is a wasteful number, since it uses less digits than its factorization.

8278772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6850 (or 6848 counting only the distinct ones).

The product of its digits is 87808, while the sum is 41.

The square root of 8278772 is about 2877.2855263251. The cubic root of 8278772 is about 202.2966265854.

The spelling of 8278772 in words is "eight million, two hundred seventy-eight thousand, seven hundred seventy-two".