2721259 has 2 divisors, whose sum is σ = 2721260. Its totient is φ = 2721258.

The previous prime is 2721247. The next prime is 2721307. The reversal of 2721259 is 9521272.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2721259 - 2⁵ = 2721227 is a prime.

It is not a weakly prime, because it can be changed into another prime (2725259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360629 + 1360630.

It is an arithmetic number, because the mean of its divisors is an integer number (1360630).

2^2721259 is an apocalyptic number.

2721259 is a deficient number, since it is larger than the sum of its proper divisors (1).

2721259 is an equidigital number, since it uses as much as digits as its factorization.

2721259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 28.

The square root of 2721259 is about 1649.6238965291. The cubic root of 2721259 is about 139.6121749466.

The spelling of 2721259 in words is "two million, seven hundred twenty-one thousand, two hundred fifty-nine".