8272778 has 32 divisors (see below), whose sum is σ = 13996800. Its totient is φ = 3646720.

The previous prime is 8272769. The next prime is 8272787. The reversal of 8272778 is 8772728.

It is an interprime number because it is at equal distance from previous prime (8272769) and next prime (8272787).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55448 + ... + 55596.

It is an arithmetic number, because the mean of its divisors is an integer number (437400).

Almost surely, 2^8272778 is an apocalyptic number.

8272778 is a deficient number, since it is larger than the sum of its proper divisors (5724022).

8272778 is a wasteful number, since it uses less digits than its factorization.

8272778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262.

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

The square root of 8272778 is about 2876.2437309797. The cubic root of 8272778 is about 202.2477925016.

The spelling of 8272778 in words is "eight million, two hundred seventy-two thousand, seven hundred seventy-eight".