8214861 has 4 divisors (see below), whose sum is σ = 10953152. Its totient is φ = 5476572.

The previous prime is 8214827. The next prime is 8214889. The reversal of 8214861 is 1684128.

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 not a de Polignac number, because 8214861 - 2¹³ = 8206669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8214461) 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, 1369141 + ... + 1369146.

It is an arithmetic number, because the mean of its divisors is an integer number (2738288).

Almost surely, 2^8214861 is an apocalyptic number.

It is an amenable number.

8214861 is a deficient number, since it is larger than the sum of its proper divisors (2738291).

8214861 is a wasteful number, since it uses less digits than its factorization.

8214861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738290.

The product of its digits is 3072, while the sum is 30.

The square root of 8214861 is about 2866.1578812061. The cubic root of 8214861 is about 201.7747137091.

Adding to 8214861 its reverse (1684128), we get a palindrome (9898989).

The spelling of 8214861 in words is "eight million, two hundred fourteen thousand, eight hundred sixty-one".