20073619 has 2 divisors, whose sum is σ = 20073620. Its totient is φ = 20073618.

The previous prime is 20073611. The next prime is 20073623. The reversal of 20073619 is 91637002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20073619 - 2³ = 20073611 is a prime.

It is a super-2 number, since 2×20073619² = 805900359514322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20073611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10036809 + 10036810.

It is an arithmetic number, because the mean of its divisors is an integer number (10036810).

Almost surely, 2^20073619 is an apocalyptic number.

20073619 is a deficient number, since it is larger than the sum of its proper divisors (1).

20073619 is an equidigital number, since it uses as much as digits as its factorization.

20073619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 20073619 is about 4480.3592489889. The cubic root of 20073619 is about 271.7744083583.

The spelling of 20073619 in words is "twenty million, seventy-three thousand, six hundred nineteen".