2725429 has 6 divisors (see below), whose sum is σ = 3170454. Its totient is φ = 2336040.

The previous prime is 2725369. The next prime is 2725433. The reversal of 2725429 is 9245272.

2725429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1695204 + 1030225 = 1302^2 + 1015^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2725429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2725429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2725439) 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 5 ways as a sum of consecutive naturals, for example, 27762 + ... + 27859.

It is an arithmetic number, because the mean of its divisors is an integer number (528409).

2^2725429 is an apocalyptic number.

It is an amenable number.

2725429 is a deficient number, since it is larger than the sum of its proper divisors (445025).

2725429 is an equidigital number, since it uses as much as digits as its factorization.

2725429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55635 (or 55628 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 2725429 is about 1650.8873371614. The cubic root of 2725429 is about 139.6834514706.

The spelling of 2725429 in words is "two million, seven hundred twenty-five thousand, four hundred twenty-nine".