711641 has 4 divisors (see below), whose sum is σ = 813312. Its totient is φ = 609972.

The previous prime is 711629. The next prime is 711649. The reversal of 711641 is 146117.

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 711641 - 2⁶ = 711577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (711649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50825 + ... + 50838.

It is an arithmetic number, because the mean of its divisors is an integer number (203328).

2⁷¹¹⁶⁴¹ is an apocalyptic number.

It is an amenable number.

711641 is a deficient number, since it is larger than the sum of its proper divisors (101671).

711641 is a wasteful number, since it uses less digits than its factorization.

711641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101670.

The product of its digits is 168, while the sum is 20.

The square root of 711641 is about 843.5881696657. The cubic root of 711641 is about 89.2798914907.

Adding to 711641 its reverse (146117), we get a palindrome (857758).

The spelling of 711641 in words is "seven hundred eleven thousand, six hundred forty-one".