1973219 has 4 divisors (see below), whose sum is σ = 1995480. Its totient is φ = 1950960.

The previous prime is 1973203. The next prime is 1973233. The reversal of 1973219 is 9123791.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9123791 = 53 ⋅172147.

It is a cyclic number.

It is not a de Polignac number, because 1973219 - 2⁴ = 1973203 is a prime.

It is a super-2 number, since 2×1973219² = 7787186443922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1973299) 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, 10997 + ... + 11174.

It is an arithmetic number, because the mean of its divisors is an integer number (498870).

2^1973219 is an apocalyptic number.

1973219 is a deficient number, since it is larger than the sum of its proper divisors (22261).

1973219 is an equidigital number, since it uses as much as digits as its factorization.

1973219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22260.

The product of its digits is 3402, while the sum is 32.

The square root of 1973219 is about 1404.7131379752. The cubic root of 1973219 is about 125.4272102677.

The spelling of 1973219 in words is "one million, nine hundred seventy-three thousand, two hundred nineteen".