427724 has 12 divisors (see below), whose sum is σ = 816648. Its totient is φ = 194400.

The previous prime is 427723. The next prime is 427727.

427724 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 427693 and 427702.

It is not an unprimeable number, because it can be changed into a prime (427723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4817 + ... + 4904.

It is an arithmetic number, because the mean of its divisors is an integer number (68054).

2⁴²⁷⁷²⁴ is an apocalyptic number.

427724 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

427724 is a deficient number, since it is larger than the sum of its proper divisors (388924).

427724 is a wasteful number, since it uses less digits than its factorization.

427724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9736 (or 9734 counting only the distinct ones).

The product of its digits is 3136, while the sum is 26.

The square root of 427724 is about 654.0061161794. The cubic root of 427724 is about 75.3450178098.

The spelling of 427724 in words is "four hundred twenty-seven thousand, seven hundred twenty-four", and thus it is an iban number.