19220973 has 8 divisors (see below), whose sum is σ = 25979328. Its totient is φ = 12638304.

The previous prime is 19220953. The next prime is 19220977. The reversal of 19220973 is 37902291.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19220973 - 2¹² = 19216877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19220977) 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 7 ways as a sum of consecutive naturals, for example, 43665 + ... + 44102.

It is an arithmetic number, because the mean of its divisors is an integer number (3247416).

Almost surely, 2^19220973 is an apocalyptic number.

It is an amenable number.

19220973 is a deficient number, since it is larger than the sum of its proper divisors (6758355).

19220973 is an equidigital number, since it uses as much as digits as its factorization.

19220973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87843.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 19220973 is about 4384.1730120970. The cubic root of 19220973 is about 267.8706446731.

The spelling of 19220973 in words is "nineteen million, two hundred twenty thousand, nine hundred seventy-three".