8361810 has 48 divisors (see below), whose sum is σ = 22163544. Its totient is φ = 2186496.

The previous prime is 8361809. The next prime is 8361833. The reversal of 8361810 is 181638.

8361810 = 223² + 224² + ... + 330².

It can be written as a sum of positive squares in 4 ways, for example, as 5239521 + 3122289 = 2289^2 + 1767^2 .

It is a super-2 number, since 2×8361810² = 139839732952200, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3894 + ... + 5646.

Almost surely, 2^8361810 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8361810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11081772).

8361810 is an abundant number, since it is smaller than the sum of its proper divisors (13801734).

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

8361810 is a wasteful number, since it uses less digits than its factorization.

8361810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819 (or 1816 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 8361810 is about 2891.6794428152. The cubic root of 8361810 is about 202.9707384194.

The spelling of 8361810 in words is "eight million, three hundred sixty-one thousand, eight hundred ten".