19973875 has 8 divisors (see below), whose sum is σ = 24927552. Its totient is φ = 15979000.

The previous prime is 19973869. The next prime is 19973881. The reversal of 19973875 is 57837991.

It is an interprime number because it is at equal distance from previous prime (19973869) and next prime (19973881).

It is not a de Polignac number, because 19973875 - 2⁵ = 19973843 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 79771 + ... + 80020.

It is an arithmetic number, because the mean of its divisors is an integer number (3115944).

Almost surely, 2^19973875 is an apocalyptic number.

19973875 is a deficient number, since it is larger than the sum of its proper divisors (4953677).

19973875 is an equidigital number, since it uses as much as digits as its factorization.

19973875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159806 (or 159796 counting only the distinct ones).

The product of its digits is 476280, while the sum is 49.

The square root of 19973875 is about 4469.2141367359. The cubic root of 19973875 is about 271.3235198930.

The spelling of 19973875 in words is "nineteen million, nine hundred seventy-three thousand, eight hundred seventy-five".