3696646 has 4 divisors (see below), whose sum is σ = 5544972. Its totient is φ = 1848322.

The previous prime is 3696643. The next prime is 3696703. The reversal of 3696646 is 6466963.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6466963 = 1487 ⋅4349.

It is a junction number, because it is equal to n+sod(n) for n = 3696599 and 3696608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3696643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 924160 + ... + 924163.

It is an arithmetic number, because the mean of its divisors is an integer number (1386243).

Almost surely, 2^3696646 is an apocalyptic number.

3696646 is a deficient number, since it is larger than the sum of its proper divisors (1848326).

3696646 is a wasteful number, since it uses less digits than its factorization.

3696646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848325.

The product of its digits is 139968, while the sum is 40.

The square root of 3696646 is about 1922.6663777161. Note that the first 3 decimals coincide. The cubic root of 3696646 is about 154.6212884200.

The spelling of 3696646 in words is "three million, six hundred ninety-six thousand, six hundred forty-six".