2036491 has 4 divisors (see below), whose sum is σ = 2042872. Its totient is φ = 2030112.

The previous prime is 2036479. The next prime is 2036501. The reversal of 2036491 is 1946302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1946302 = 2 ⋅973151.

It is a cyclic number.

It is not a de Polignac number, because 2036491 - 2⁵ = 2036459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2036791) 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, 2685 + ... + 3358.

It is an arithmetic number, because the mean of its divisors is an integer number (510718).

2^2036491 is an apocalyptic number.

2036491 is a deficient number, since it is larger than the sum of its proper divisors (6381).

2036491 is an equidigital number, since it uses as much as digits as its factorization.

2036491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6380.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2036491 is about 1427.0567613098. The cubic root of 2036491 is about 126.7537543610.

The spelling of 2036491 in words is "two million, thirty-six thousand, four hundred ninety-one".