8261868 has 24 divisors (see below), whose sum is σ = 19943280. Its totient is φ = 2658880.

The previous prime is 8261857. The next prime is 8261879. The reversal of 8261868 is 8681628.

It is an interprime number because it is at equal distance from previous prime (8261857) and next prime (8261879).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11523 + ... + 12218.

It is an arithmetic number, because the mean of its divisors is an integer number (830970).

Almost surely, 2^8261868 is an apocalyptic number.

It is an amenable number.

8261868 is an abundant number, since it is smaller than the sum of its proper divisors (11681412).

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

8261868 is a wasteful number, since it uses less digits than its factorization.

8261868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23777 (or 23775 counting only the distinct ones).

The product of its digits is 36864, while the sum is 39.

The square root of 8261868 is about 2874.3465344318. The cubic root of 8261868 is about 202.1588463982.

The spelling of 8261868 in words is "eight million, two hundred sixty-one thousand, eight hundred sixty-eight".