3977563 has 4 divisors (see below), whose sum is σ = 4062240. Its totient is φ = 3892888.

The previous prime is 3977549. The next prime is 3977569. The reversal of 3977563 is 3657793.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3977563 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3977569) 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, 42268 + ... + 42361.

It is an arithmetic number, because the mean of its divisors is an integer number (1015560).

Almost surely, 2^3977563 is an apocalyptic number.

3977563 is a deficient number, since it is larger than the sum of its proper divisors (84677).

3977563 is an equidigital number, since it uses as much as digits as its factorization.

3977563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84676.

The product of its digits is 119070, while the sum is 40.

The square root of 3977563 is about 1994.3828619400. The cubic root of 3977563 is about 158.4427441994.

The spelling of 3977563 in words is "three million, nine hundred seventy-seven thousand, five hundred sixty-three".