8243386 has 4 divisors (see below), whose sum is σ = 12365082. Its totient is φ = 4121692.

The previous prime is 8243383. The next prime is 8243393. The reversal of 8243386 is 6833428.

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., 6155361 + 2088025 = 2481^2 + 1445^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8243381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2060845 + ... + 2060848.

Almost surely, 2^8243386 is an apocalyptic number.

8243386 is a deficient number, since it is larger than the sum of its proper divisors (4121696).

8243386 is a wasteful number, since it uses less digits than its factorization.

8243386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4121695.

The product of its digits is 27648, while the sum is 34.

The square root of 8243386 is about 2871.1297428016. The cubic root of 8243386 is about 202.0079890968.

The spelling of 8243386 in words is "eight million, two hundred forty-three thousand, three hundred eighty-six".