2891356 has 12 divisors (see below), whose sum is σ = 5449192. Its totient is φ = 1334448.

The previous prime is 2891341. The next prime is 2891359. The reversal of 2891356 is 6531982.

2891356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2891356³ = 72514683861403338048, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2891359) 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, 27750 + ... + 27853.

2^2891356 is an apocalyptic number.

2891356 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2891356 is a deficient number, since it is larger than the sum of its proper divisors (2557836).

2891356 is a wasteful number, since it uses less digits than its factorization.

2891356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55620 (or 55618 counting only the distinct ones).

The product of its digits is 12960, while the sum is 34.

The square root of 2891356 is about 1700.3987767580. The cubic root of 2891356 is about 142.4624873044.

The spelling of 2891356 in words is "two million, eight hundred ninety-one thousand, three hundred fifty-six".