8240872 has 16 divisors (see below), whose sum is σ = 15984900. Its totient is φ = 3978240.

The previous prime is 8240867. The next prime is 8240873. The reversal of 8240872 is 2780428.

It can be written as a sum of positive squares in 2 ways, for example, as 7873636 + 367236 = 2806^2 + 606^2 .

It is not an unprimeable number, because it can be changed into a prime (8240873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17529 + ... + 17992.

Almost surely, 2^8240872 is an apocalyptic number.

It is an amenable number.

8240872 is a deficient number, since it is larger than the sum of its proper divisors (7744028).

8240872 is a wasteful number, since it uses less digits than its factorization.

8240872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35556 (or 35552 counting only the distinct ones).

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

The square root of 8240872 is about 2870.6919026604. The cubic root of 8240872 is about 201.9874514310.

The spelling of 8240872 in words is "eight million, two hundred forty thousand, eight hundred seventy-two".