8265861 has 16 divisors (see below), whose sum is σ = 12292800. Its totient is φ = 5489424.

The previous prime is 8265833. The next prime is 8265877. The reversal of 8265861 is 1685628.

It is a happy number.

It is not a de Polignac number, because 8265861 - 2¹⁸ = 8003717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8265811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10110 + ... + 10896.

It is an arithmetic number, because the mean of its divisors is an integer number (768300).

Almost surely, 2^8265861 is an apocalyptic number.

It is an amenable number.

8265861 is a deficient number, since it is larger than the sum of its proper divisors (4026939).

8265861 is a wasteful number, since it uses less digits than its factorization.

8265861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185 (or 1179 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 8265861 is about 2875.0410431853. The cubic root of 8265861 is about 202.1914092626.

The spelling of 8265861 in words is "eight million, two hundred sixty-five thousand, eight hundred sixty-one".