20074589 has 2 divisors, whose sum is σ = 20074590. Its totient is φ = 20074588.

The previous prime is 20074567. The next prime is 20074619. The reversal of 20074589 is 98547002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17081689 + 2992900 = 4133^2 + 1730^2 .

It is a cyclic number.

It is not a de Polignac number, because 20074589 - 2¹⁶ = 20009053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20074559) 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, 10037294 + 10037295.

It is an arithmetic number, because the mean of its divisors is an integer number (10037295).

Almost surely, 2^20074589 is an apocalyptic number.

It is an amenable number.

20074589 is a deficient number, since it is larger than the sum of its proper divisors (1).

20074589 is an equidigital number, since it uses as much as digits as its factorization.

20074589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 20074589 is about 4480.4674979292. The cubic root of 20074589 is about 271.7787858604.

The spelling of 20074589 in words is "twenty million, seventy-four thousand, five hundred eighty-nine".