8260861 has 24 divisors (see below), whose sum is σ = 10440576. Its totient is φ = 6491520.

The previous prime is 8260843. The next prime is 8260871. The reversal of 8260861 is 1680628.

It is not a de Polignac number, because 8260861 - 2⁵ = 8260829 is a prime.

It is a super-2 number, since 2×8260861² = 136483648922642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8260871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39046 + ... + 39256.

It is an arithmetic number, because the mean of its divisors is an integer number (435024).

Almost surely, 2^8260861 is an apocalyptic number.

It is an amenable number.

8260861 is a deficient number, since it is larger than the sum of its proper divisors (2179715).

8260861 is a wasteful number, since it uses less digits than its factorization.

8260861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 8260861 is about 2874.1713588441. The cubic root of 8260861 is about 202.1506326693.

The spelling of 8260861 in words is "eight million, two hundred sixty thousand, eight hundred sixty-one".