2725427 has 4 divisors (see below), whose sum is σ = 2813376. Its totient is φ = 2637480.

The previous prime is 2725369. The next prime is 2725433. The reversal of 2725427 is 7245272.

2725427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-2725427 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2725427.

It is not an unprimeable number, because it can be changed into a prime (2725027) 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 3 ways as a sum of consecutive naturals, for example, 43928 + ... + 43989.

It is an arithmetic number, because the mean of its divisors is an integer number (703344).

2^2725427 is an apocalyptic number.

2725427 is a deficient number, since it is larger than the sum of its proper divisors (87949).

2725427 is an equidigital number, since it uses as much as digits as its factorization.

2725427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87948.

The product of its digits is 7840, while the sum is 29.

The square root of 2725427 is about 1650.8867314265. The cubic root of 2725427 is about 139.6834173026.

It can be divided in two parts, 2725 and 427, that multiplied together give a triangular number (1163575 = T₁₅₂₅).

The spelling of 2725427 in words is "two million, seven hundred twenty-five thousand, four hundred twenty-seven".