2891269 has 4 divisors (see below), whose sum is σ = 2903040. Its totient is φ = 2879500.

The previous prime is 2891263. The next prime is 2891281. The reversal of 2891269 is 9621982.

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 a cyclic number.

It is not a de Polignac number, because 2891269 - 2⁵ = 2891237 is a prime.

It is a super-2 number, since 2×2891269² = 16718872860722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2891263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5509 + ... + 6010.

It is an arithmetic number, because the mean of its divisors is an integer number (725760).

2^2891269 is an apocalyptic number.

It is an amenable number.

2891269 is a deficient number, since it is larger than the sum of its proper divisors (11771).

2891269 is a wasteful number, since it uses less digits than its factorization.

2891269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11770.

The product of its digits is 15552, while the sum is 37.

The square root of 2891269 is about 1700.3731943312. The cubic root of 2891269 is about 142.4610584061.

It can be divided in two parts, 2891 and 269, that added together give a triangular number (3160 = T₇₉).

The spelling of 2891269 in words is "two million, eight hundred ninety-one thousand, two hundred sixty-nine".