8272840 has 16 divisors (see below), whose sum is σ = 18613980. Its totient is φ = 3309120.

The previous prime is 8272819. The next prime is 8272853. The reversal of 8272840 is 482728.

8272840 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8191044 + 81796 = 2862^2 + 286^2 .

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, 103371 + ... + 103450.

Almost surely, 2^8272840 is an apocalyptic number.

It is an amenable number.

8272840 is an abundant number, since it is smaller than the sum of its proper divisors (10341140).

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

8272840 is a wasteful number, since it uses less digits than its factorization.

8272840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206832 (or 206828 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 8272840 is about 2876.2545089056. The cubic root of 8272840 is about 202.2482977463.

The spelling of 8272840 in words is "eight million, two hundred seventy-two thousand, eight hundred forty".