8072186 has 4 divisors (see below), whose sum is σ = 12108282. Its totient is φ = 4036092.

The previous prime is 8072173. The next prime is 8072189. The reversal of 8072186 is 6812708.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7317025 + 755161 = 2705^2 + 869^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8072189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2018045 + ... + 2018048.

Almost surely, 2^8072186 is an apocalyptic number.

8072186 is a deficient number, since it is larger than the sum of its proper divisors (4036096).

8072186 is a wasteful number, since it uses less digits than its factorization.

8072186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4036095.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 8072186 is about 2841.1592704387. The cubic root of 8072186 is about 200.5997497037.

The spelling of 8072186 in words is "eight million, seventy-two thousand, one hundred eighty-six".