2641999 has 4 divisors (see below), whose sum is σ = 2706480. Its totient is φ = 2577520.

The previous prime is 2641993. The next prime is 2642039. The reversal of 2641999 is 9991462.

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

It is a cyclic number.

It is not a de Polignac number, because 2641999 - 2⁹ = 2641487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2641993) 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, 32179 + ... + 32260.

It is an arithmetic number, because the mean of its divisors is an integer number (676620).

2^2641999 is an apocalyptic number.

2641999 is a deficient number, since it is larger than the sum of its proper divisors (64481).

2641999 is an equidigital number, since it uses as much as digits as its factorization.

2641999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64480.

The product of its digits is 34992, while the sum is 40.

The square root of 2641999 is about 1625.4227142501. The cubic root of 2641999 is about 138.2433394762.

It can be divided in two parts, 26 and 41999, that added together give a square (42025 = 205²).

The spelling of 2641999 in words is "two million, six hundred forty-one thousand, nine hundred ninety-nine".