8660261 has 4 divisors (see below), whose sum is σ = 8669472. Its totient is φ = 8651052.

The previous prime is 8660233. The next prime is 8660263. The reversal of 8660261 is 1620668.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8660261 - 2²² = 4465957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8660263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3011 + ... + 5136.

It is an arithmetic number, because the mean of its divisors is an integer number (2167368).

Almost surely, 2^8660261 is an apocalyptic number.

It is an amenable number.

8660261 is a deficient number, since it is larger than the sum of its proper divisors (9211).

8660261 is a wasteful number, since it uses less digits than its factorization.

8660261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9210.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 8660261 is about 2942.8321392835. The cubic root of 8660261 is about 205.3573857129.

The spelling of 8660261 in words is "eight million, six hundred sixty thousand, two hundred sixty-one".