711421 has 4 divisors (see below), whose sum is σ = 718432. Its totient is φ = 704412.

The previous prime is 711409. The next prime is 711427. The reversal of 711421 is 124117.

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 not a de Polignac number, because 711421 - 2⁹ = 710909 is a prime.

It is a super-2 number, since 2×711421² = 1012239678482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 711395 and 711404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (711427) 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, 3351 + ... + 3556.

It is an arithmetic number, because the mean of its divisors is an integer number (179608).

2⁷¹¹⁴²¹ is an apocalyptic number.

It is an amenable number.

711421 is a deficient number, since it is larger than the sum of its proper divisors (7011).

711421 is a wasteful number, since it uses less digits than its factorization.

711421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7010.

The product of its digits is 56, while the sum is 16.

The square root of 711421 is about 843.4577642064. The cubic root of 711421 is about 89.2706904093.

Adding to 711421 its reverse (124117), we get a palindrome (835538).

The spelling of 711421 in words is "seven hundred eleven thousand, four hundred twenty-one", and thus it is an iban number.