8253666 has 24 divisors (see below), whose sum is σ = 18178524. Its totient is φ = 2705760.

The previous prime is 8253617. The next prime is 8253667. The reversal of 8253666 is 6663528.

It can be written as a sum of positive squares in 2 ways, for example, as 8242641 + 11025 = 2871^2 + 105^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 8253666.

It is not an unprimeable number, because it can be changed into a prime (8253667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2661 + ... + 4856.

Almost surely, 2^8253666 is an apocalyptic number.

8253666 is an abundant number, since it is smaller than the sum of its proper divisors (9924858).

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

8253666 is a wasteful number, since it uses less digits than its factorization.

8253666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7586 (or 7583 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 8253666 is about 2872.9194210768. The cubic root of 8253666 is about 202.0919262675.

The spelling of 8253666 in words is "eight million, two hundred fifty-three thousand, six hundred sixty-six".