6743986 has 4 divisors (see below), whose sum is σ = 10115982. Its totient is φ = 3371992.

The previous prime is 6743941. The next prime is 6743987. The reversal of 6743986 is 6893476.

It is a happy number.

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., 6095961 + 648025 = 2469^2 + 805^2 .

It is not an unprimeable number, because it can be changed into a prime (6743987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1685995 + ... + 1685998.

Almost surely, 2^6743986 is an apocalyptic number.

6743986 is a deficient number, since it is larger than the sum of its proper divisors (3371996).

6743986 is a wasteful number, since it uses less digits than its factorization.

6743986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371995.

The product of its digits is 217728, while the sum is 43.

The square root of 6743986 is about 2596.9185585998. The cubic root of 6743986 is about 188.9320136573.

The spelling of 6743986 in words is "six million, seven hundred forty-three thousand, nine hundred eighty-six".