3662947 has 4 divisors (see below), whose sum is σ = 3682120. Its totient is φ = 3643776.

The previous prime is 3662941. The next prime is 3662951. The reversal of 3662947 is 7492663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7492663 = 53 ⋅141371.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3662947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3662941) 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 in 3 ways as a sum of consecutive naturals, for example, 9297 + ... + 9682.

It is an arithmetic number, because the mean of its divisors is an integer number (920530).

Almost surely, 2^3662947 is an apocalyptic number.

3662947 is a deficient number, since it is larger than the sum of its proper divisors (19173).

3662947 is a wasteful number, since it uses less digits than its factorization.

3662947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19172.

The product of its digits is 54432, while the sum is 37.

The square root of 3662947 is about 1913.8827027799. The cubic root of 3662947 is about 154.1500056339.

The spelling of 3662947 in words is "three million, six hundred sixty-two thousand, nine hundred forty-seven".