8372566 has 4 divisors (see below), whose sum is σ = 12558852. Its totient is φ = 4186282.

The previous prime is 8372563. The next prime is 8372579. The reversal of 8372566 is 6652738.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×8372566² = 140199722848712, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8372563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2093140 + ... + 2093143.

It is an arithmetic number, because the mean of its divisors is an integer number (3139713).

Almost surely, 2^8372566 is an apocalyptic number.

8372566 is a deficient number, since it is larger than the sum of its proper divisors (4186286).

8372566 is a wasteful number, since it uses less digits than its factorization.

8372566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4186285.

The product of its digits is 60480, while the sum is 37.

The square root of 8372566 is about 2893.5386639891. The cubic root of 8372566 is about 203.0577298662.

It can be divided in two parts, 837 and 2566, that added together give a triangular number (3403 = T₈₂).

The spelling of 8372566 in words is "eight million, three hundred seventy-two thousand, five hundred sixty-six".