20792019 has 4 divisors (see below), whose sum is σ = 27722696. Its totient is φ = 13861344.

The previous prime is 20791999. The next prime is 20792027. The reversal of 20792019 is 91029702.

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

It is not a de Polignac number, because 20792019 - 2⁵ = 20791987 is a prime.

It is a super-2 number, since 2×20792019² = 864616108192722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20792029) 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, 3465334 + ... + 3465339.

It is an arithmetic number, because the mean of its divisors is an integer number (6930674).

Almost surely, 2^20792019 is an apocalyptic number.

20792019 is a deficient number, since it is larger than the sum of its proper divisors (6930677).

20792019 is an equidigital number, since it uses as much as digits as its factorization.

20792019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6930676.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 20792019 is about 4559.8266414415. The cubic root of 20792019 is about 274.9785944771.

The spelling of 20792019 in words is "twenty million, seven hundred ninety-two thousand, nineteen".