2892281 has 4 divisors (see below), whose sum is σ = 3305472. Its totient is φ = 2479092.

The previous prime is 2892277. The next prime is 2892283. The reversal of 2892281 is 1822982.

2892281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2892281 - 2² = 2892277 is a prime.

It is a super-2 number, since 2×2892281² = 16730578765922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2892283) 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 in 3 ways as a sum of consecutive naturals, for example, 206585 + ... + 206598.

It is an arithmetic number, because the mean of its divisors is an integer number (826368).

2^2892281 is an apocalyptic number.

It is an amenable number.

2892281 is a deficient number, since it is larger than the sum of its proper divisors (413191).

2892281 is an equidigital number, since it uses as much as digits as its factorization.

2892281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413190.

The product of its digits is 4608, while the sum is 32.

The square root of 2892281 is about 1700.6707500278. The cubic root of 2892281 is about 142.4776778413.

The spelling of 2892281 in words is "two million, eight hundred ninety-two thousand, two hundred eighty-one".