8132861 has 4 divisors (see below), whose sum is σ = 8872224. Its totient is φ = 7393500.

The previous prime is 8132849. The next prime is 8132879. The reversal of 8132861 is 1682318.

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.

It is a cyclic number.

It is not a de Polignac number, because 8132861 - 2¹⁸ = 7870717 is a prime.

It is a super-2 number, since 2×8132861² = 132286856090642, 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 (8132561) 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, 369665 + ... + 369686.

It is an arithmetic number, because the mean of its divisors is an integer number (2218056).

Almost surely, 2^8132861 is an apocalyptic number.

It is an amenable number.

8132861 is a deficient number, since it is larger than the sum of its proper divisors (739363).

8132861 is a wasteful number, since it uses less digits than its factorization.

8132861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739362.

The product of its digits is 2304, while the sum is 29.

The square root of 8132861 is about 2851.8171400004. The cubic root of 8132861 is about 201.1011017497.

The spelling of 8132861 in words is "eight million, one hundred thirty-two thousand, eight hundred sixty-one".