2858885921 has 2 divisors, whose sum is σ = 2858885922. Its totient is φ = 2858885920.

The previous prime is 2858885833. The next prime is 2858885927. The reversal of 2858885921 is 1295888582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2149249600 + 709636321 = 46360^2 + 26639^2 .

It is a cyclic number.

It is not a de Polignac number, because 2858885921 - 2¹⁴ = 2858869537 is a prime.

It is not a weakly prime, because it can be changed into another prime (2858885927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1429442960 + 1429442961.

It is an arithmetic number, because the mean of its divisors is an integer number (1429442961).

Almost surely, 2^2858885921 is an apocalyptic number.

It is an amenable number.

2858885921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2858885921 is an equidigital number, since it uses as much as digits as its factorization.

2858885921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3686400, while the sum is 56.

The square root of 2858885921 is about 53468.5507658474. The cubic root of 2858885921 is about 1419.2719141575.

The spelling of 2858885921 in words is "two billion, eight hundred fifty-eight million, eight hundred eighty-five thousand, nine hundred twenty-one".