8667261 has 12 divisors (see below), whose sum is σ = 12552540. Its totient is φ = 5762880.

The previous prime is 8667257. The next prime is 8667271. The reversal of 8667261 is 1627668.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5405625 + 3261636 = 2325^2 + 1806^2 .

It is not a de Polignac number, because 8667261 - 2² = 8667257 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

8667261 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8667271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3105 + ... + 5193.

It is an arithmetic number, because the mean of its divisors is an integer number (1046045).

Almost surely, 2^8667261 is an apocalyptic number.

It is an amenable number.

8667261 is a deficient number, since it is larger than the sum of its proper divisors (3885279).

8667261 is a wasteful number, since it uses less digits than its factorization.

8667261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556 (or 2553 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 8667261 is about 2944.0212295430. The cubic root of 8667261 is about 205.4127002340.

The spelling of 8667261 in words is "eight million, six hundred sixty-seven thousand, two hundred sixty-one".