8166537 has 6 divisors (see below), whose sum is σ = 11796122. Its totient is φ = 5444352.

The previous prime is 8166469. The next prime is 8166553. The reversal of 8166537 is 7356618.

8166537 is digitally balanced in base 4, 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 only one way, i.e., 8156736 + 9801 = 2856^2 + 99^2 .

It is not a de Polignac number, because 8166537 - 2¹⁹ = 7642249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8166577) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 453688 + ... + 453705.

Almost surely, 2^8166537 is an apocalyptic number.

It is an amenable number.

8166537 is a deficient number, since it is larger than the sum of its proper divisors (3629585).

8166537 is a wasteful number, since it uses less digits than its factorization.

8166537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907399 (or 907396 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 8166537 is about 2857.7153462163. The cubic root of 8166537 is about 201.3782881234.

The spelling of 8166537 in words is "eight million, one hundred sixty-six thousand, five hundred thirty-seven".