3693686 has 4 divisors (see below), whose sum is σ = 5540532. Its totient is φ = 1846842.

The previous prime is 3693661. The next prime is 3693689. The reversal of 3693686 is 6863963.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6863963 = 1747 ⋅3929.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3693689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 923420 + ... + 923423.

It is an arithmetic number, because the mean of its divisors is an integer number (1385133).

Almost surely, 2^3693686 is an apocalyptic number.

3693686 is a deficient number, since it is larger than the sum of its proper divisors (1846846).

3693686 is a wasteful number, since it uses less digits than its factorization.

3693686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846845.

The product of its digits is 139968, while the sum is 41.

The square root of 3693686 is about 1921.8964592298. The cubic root of 3693686 is about 154.5800076458.

The spelling of 3693686 in words is "three million, six hundred ninety-three thousand, six hundred eighty-six".