2026591 has 12 divisors (see below), whose sum is σ = 2400840. Its totient is φ = 1705200.

The previous prime is 2026567. The next prime is 2026613. The reversal of 2026591 is 1956202.

It is not a de Polignac number, because 2026591 - 2⁷ = 2026463 is a prime.

It is a Duffinian number.

2026591 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2026091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2541 + ... + 3241.

It is an arithmetic number, because the mean of its divisors is an integer number (200070).

2^2026591 is an apocalyptic number.

2026591 is a deficient number, since it is larger than the sum of its proper divisors (374249).

2026591 is an equidigital number, since it uses as much as digits as its factorization.

2026591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774 (or 767 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 2026591 is about 1423.5838577337. The cubic root of 2026591 is about 126.5480244888.

The spelling of 2026591 in words is "two million, twenty-six thousand, five hundred ninety-one".