1721414 has 8 divisors (see below), whose sum is σ = 2589408. Its totient is φ = 858280.

The previous prime is 1721407. The next prime is 1721417. The reversal of 1721414 is 4141271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1721417) 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, 137 + ... + 1860.

It is an arithmetic number, because the mean of its divisors is an integer number (323676).

2^1721414 is an apocalyptic number.

1721414 is a deficient number, since it is larger than the sum of its proper divisors (867994).

1721414 is a wasteful number, since it uses less digits than its factorization.

1721414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2430.

The product of its digits is 224, while the sum is 20.

The square root of 1721414 is about 1312.0266765581. The cubic root of 1721414 is about 119.8473522007.

Adding to 1721414 its reverse (4141271), we get a palindrome (5862685).

The spelling of 1721414 in words is "one million, seven hundred twenty-one thousand, four hundred fourteen".