2891726 has 4 divisors (see below), whose sum is σ = 4337592. Its totient is φ = 1445862.

The previous prime is 2891701. The next prime is 2891729. The reversal of 2891726 is 6271982.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2891729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722930 + ... + 722933.

It is an arithmetic number, because the mean of its divisors is an integer number (1084398).

2^2891726 is an apocalyptic number.

2891726 is a deficient number, since it is larger than the sum of its proper divisors (1445866).

2891726 is a wasteful number, since it uses less digits than its factorization.

2891726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445865.

The product of its digits is 12096, while the sum is 35.

The square root of 2891726 is about 1700.5075712857. The cubic root of 2891726 is about 142.4685639079.

The spelling of 2891726 in words is "two million, eight hundred ninety-one thousand, seven hundred twenty-six".