3972803 has 6 divisors (see below), whose sum is σ = 4021836. Its totient is φ = 3924332.

The previous prime is 3972791. The next prime is 3972809. The reversal of 3972803 is 3082793.

It is not a de Polignac number, because 3972803 - 2¹⁴ = 3956419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3972803.

It is not an unprimeable number, because it can be changed into a prime (3972809) 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 5 ways as a sum of consecutive naturals, for example, 11276 + ... + 11622.

It is an arithmetic number, because the mean of its divisors is an integer number (670306).

Almost surely, 2^3972803 is an apocalyptic number.

3972803 is a deficient number, since it is larger than the sum of its proper divisors (49033).

3972803 is an equidigital number, since it uses as much as digits as its factorization.

3972803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 3972803 is about 1993.1891530911. The cubic root of 3972803 is about 158.3795154912.

The spelling of 3972803 in words is "three million, nine hundred seventy-two thousand, eight hundred three".