2891097 has 48 divisors (see below), whose sum is σ = 5054400. Its totient is φ = 1572480.

The previous prime is 2891093. The next prime is 2891101. The reversal of 2891097 is 7901982.

It is a happy number.

2891097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2891093) and next prime (2891101).

It is not a de Polignac number, because 2891097 - 2² = 2891093 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2891093) 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 47 ways as a sum of consecutive naturals, for example, 54523 + ... + 54575.

It is an arithmetic number, because the mean of its divisors is an integer number (105300).

2^2891097 is an apocalyptic number.

It is an amenable number.

2891097 is a deficient number, since it is larger than the sum of its proper divisors (2163303).

2891097 is a wasteful number, since it uses less digits than its factorization.

2891097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 2891097 is about 1700.3226164467. The cubic root of 2891097 is about 142.4582333735.

It can be divided in two parts, 28 and 91097, that added together give a cube (91125 = 45³).

The spelling of 2891097 in words is "two million, eight hundred ninety-one thousand, ninety-seven".