427739 has 6 divisors (see below), whose sum is σ = 463356. Its totient is φ = 394680.

The previous prime is 427733. The next prime is 427751. The reversal of 427739 is 937724.

427739 = T₂₅₀ + T₂₅₁ + ... + T₂₆₂.

It is a happy number.

It is not a de Polignac number, because 427739 - 2⁴ = 427723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427733) 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, 1097 + ... + 1434.

It is an arithmetic number, because the mean of its divisors is an integer number (77226).

2⁴²⁷⁷³⁹ is an apocalyptic number.

427739 is a deficient number, since it is larger than the sum of its proper divisors (35617).

427739 is a wasteful number, since it uses less digits than its factorization.

427739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2557 (or 2544 counting only the distinct ones).

The product of its digits is 10584, while the sum is 32.

The square root of 427739 is about 654.0175838615. The cubic root of 427739 is about 75.3458985663.

The spelling of 427739 in words is "four hundred twenty-seven thousand, seven hundred thirty-nine".