3673643 has 4 divisors (see below), whose sum is σ = 3697200. Its totient is φ = 3650088.

The previous prime is 3673639. The next prime is 3673651. The reversal of 3673643 is 3463763.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3463763 = 61 ⋅56783.

It is a cyclic number.

It is not a de Polignac number, because 3673643 - 2² = 3673639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3673613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11543 + ... + 11856.

It is an arithmetic number, because the mean of its divisors is an integer number (924300).

Almost surely, 2^3673643 is an apocalyptic number.

3673643 is a deficient number, since it is larger than the sum of its proper divisors (23557).

3673643 is a wasteful number, since it uses less digits than its factorization.

3673643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23556.

The product of its digits is 27216, while the sum is 32.

The square root of 3673643 is about 1916.6749854892. The cubic root of 3673643 is about 154.2999018977.

The spelling of 3673643 in words is "three million, six hundred seventy-three thousand, six hundred forty-three".