711727421 has 4 divisors (see below), whose sum is σ = 714705600. Its totient is φ = 708749244.

The previous prime is 711727361. The next prime is 711727427. The reversal of 711727421 is 124727117.

711727421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 124727117 = 8819 ⋅14143.

It is a cyclic number.

It is not a de Polignac number, because 711727421 - 2¹⁴ = 711711037 is a prime.

It is a super-2 number, since 2×711727421² = 1013111843606622482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (711727427) 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, 1488731 + ... + 1489208.

It is an arithmetic number, because the mean of its divisors is an integer number (178676400).

Almost surely, 2^711727421 is an apocalyptic number.

It is an amenable number.

711727421 is a deficient number, since it is larger than the sum of its proper divisors (2978179).

711727421 is a wasteful number, since it uses less digits than its factorization.

711727421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2978178.

The product of its digits is 5488, while the sum is 32.

The square root of 711727421 is about 26678.2199743536. The cubic root of 711727421 is about 892.8350536591.

The spelling of 711727421 in words is "seven hundred eleven million, seven hundred twenty-seven thousand, four hundred twenty-one".