1724427 has 12 divisors (see below), whose sum is σ = 2577120. Its totient is φ = 1109808.

The previous prime is 1724423. The next prime is 1724441. The reversal of 1724427 is 7244271.

It is a happy number.

It is not a de Polignac number, because 1724427 - 2² = 1724423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1724427.

It is not an unprimeable number, because it can be changed into a prime (1724423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3043 + ... + 3564.

It is an arithmetic number, because the mean of its divisors is an integer number (214760).

2^1724427 is an apocalyptic number.

1724427 is a deficient number, since it is larger than the sum of its proper divisors (852693).

1724427 is a wasteful number, since it uses less digits than its factorization.

1724427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6642 (or 6639 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 1724427 is about 1313.1743981665. The cubic root of 1724427 is about 119.9172345955.

Adding to 1724427 its reverse (7244271), we get a palindrome (8968698).

It can be divided in two parts, 17244 and 27, that added together give a palindrome (17271).

The spelling of 1724427 in words is "one million, seven hundred twenty-four thousand, four hundred twenty-seven".