2599221 has 8 divisors (see below), whose sum is σ = 3546400. Its totient is φ = 1692432.

The previous prime is 2599217. The next prime is 2599231. The reversal of 2599221 is 1229952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2599221 - 2² = 2599217 is a prime.

It is a Duffinian number.

It is a Curzon number.

2599221 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2599231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9946 + ... + 10203.

It is an arithmetic number, because the mean of its divisors is an integer number (443300).

2^2599221 is an apocalyptic number.

It is an amenable number.

2599221 is a deficient number, since it is larger than the sum of its proper divisors (947179).

2599221 is a wasteful number, since it uses less digits than its factorization.

2599221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20195.

The product of its digits is 3240, while the sum is 30.

The square root of 2599221 is about 1612.2099739178. The cubic root of 2599221 is about 137.4931522761.

The spelling of 2599221 in words is "two million, five hundred ninety-nine thousand, two hundred twenty-one".