1711421 has 4 divisors (see below), whose sum is σ = 1719744. Its totient is φ = 1703100.

The previous prime is 1711399. The next prime is 1711427. The reversal of 1711421 is 1241171.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1711421 is a prime.

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 1711421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1711427) 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, 3845 + ... + 4266.

It is an arithmetic number, because the mean of its divisors is an integer number (429936).

2^1711421 is an apocalyptic number.

It is an amenable number.

1711421 is a deficient number, since it is larger than the sum of its proper divisors (8323).

1711421 is an equidigital number, since it uses as much as digits as its factorization.

1711421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8322.

The product of its digits is 56, while the sum is 17.

The square root of 1711421 is about 1308.2129031622. The cubic root of 1711421 is about 119.6149929191.

Adding to 1711421 its reverse (1241171), we get a palindrome (2952592).

The spelling of 1711421 in words is "one million, seven hundred eleven thousand, four hundred twenty-one".