2891234 has 8 divisors (see below), whose sum is σ = 4437840. Its totient is φ = 1411956.

The previous prime is 2891233. The next prime is 2891237. The reversal of 2891234 is 4321982.

2891234 = T₃₄₅ + T₃₄₆ + ... + T₃₈₇.

2891234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2891197 and 2891206.

It is not an unprimeable number, because it can be changed into a prime (2891233) 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, 16724 + ... + 16895.

It is an arithmetic number, because the mean of its divisors is an integer number (554730).

2^2891234 is an apocalyptic number.

2891234 is a deficient number, since it is larger than the sum of its proper divisors (1546606).

2891234 is a wasteful number, since it uses less digits than its factorization.

2891234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33664.

The product of its digits is 3456, while the sum is 29.

The square root of 2891234 is about 1700.3629024417. The cubic root of 2891234 is about 142.4604835539.

It can be divided in two parts, 2891 and 234, that added together give a 5-th power (3125 = 5⁵).

The spelling of 2891234 in words is "two million, eight hundred ninety-one thousand, two hundred thirty-four".