3743686 has 4 divisors (see below), whose sum is σ = 5615532. Its totient is φ = 1871842.

The previous prime is 3743683. The next prime is 3743699. The reversal of 3743686 is 6863473.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6863473 = 1531 ⋅4483.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3743681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 935920 + ... + 935923.

It is an arithmetic number, because the mean of its divisors is an integer number (1403883).

Almost surely, 2^3743686 is an apocalyptic number.

3743686 is a deficient number, since it is larger than the sum of its proper divisors (1871846).

3743686 is a wasteful number, since it uses less digits than its factorization.

3743686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871845.

The product of its digits is 72576, while the sum is 37.

The square root of 3743686 is about 1934.8607185015. The cubic root of 3743686 is about 155.2743804646.

The spelling of 3743686 in words is "three million, seven hundred forty-three thousand, six hundred eighty-six".