8261904 has 80 divisors (see below), whose sum is σ = 24823808. Its totient is φ = 2318976.

The previous prime is 8261893. The next prime is 8261909. The reversal of 8261904 is 4091628.

It is not an unprimeable number, because it can be changed into a prime (8261909) 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, 22329 + ... + 22695.

Almost surely, 2^8261904 is an apocalyptic number.

8261904 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8261904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12411904).

8261904 is an abundant number, since it is smaller than the sum of its proper divisors (16561904).

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

8261904 is a wasteful number, since it uses less digits than its factorization.

8261904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 8261904 is about 2874.3527967179. The cubic root of 8261904 is about 202.1591400246.

The spelling of 8261904 in words is "eight million, two hundred sixty-one thousand, nine hundred four".