20258873 has 2 divisors, whose sum is σ = 20258874. Its totient is φ = 20258872.

The previous prime is 20258867. The next prime is 20258897. The reversal of 20258873 is 37885202.

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., 20187049 + 71824 = 4493^2 + 268^2 .

It is a cyclic number.

It is not a de Polignac number, because 20258873 - 2¹² = 20254777 is a prime.

It is not a weakly prime, because it can be changed into another prime (20258813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10129436 + 10129437.

It is an arithmetic number, because the mean of its divisors is an integer number (10129437).

Almost surely, 2^20258873 is an apocalyptic number.

It is an amenable number.

20258873 is a deficient number, since it is larger than the sum of its proper divisors (1).

20258873 is an equidigital number, since it uses as much as digits as its factorization.

20258873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 20258873 is about 4500.9857809151. The cubic root of 20258873 is about 272.6078937561.

The spelling of 20258873 in words is "twenty million, two hundred fifty-eight thousand, eight hundred seventy-three".