711339721 has 8 divisors (see below), whose sum is σ = 755209224. Its totient is φ = 667695360.

The previous prime is 711339701. The next prime is 711339749. The reversal of 711339721 is 127933117.

711339721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 422713600 + 288626121 = 20560^2 + 16989^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 711339721 - 2¹³ = 711331529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (711339701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49750 + ... + 62431.

It is an arithmetic number, because the mean of its divisors is an integer number (94401153).

Almost surely, 2^711339721 is an apocalyptic number.

It is an amenable number.

711339721 is a deficient number, since it is larger than the sum of its proper divisors (43869503).

711339721 is a wasteful number, since it uses less digits than its factorization.

711339721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112571.

The product of its digits is 7938, while the sum is 34.

The square root of 711339721 is about 26670.9527576350. The cubic root of 711339721 is about 892.6729058984.

The spelling of 711339721 in words is "seven hundred eleven million, three hundred thirty-nine thousand, seven hundred twenty-one".