711998447 has 4 divisors (see below), whose sum is σ = 714977760. Its totient is φ = 709019136.

The previous prime is 711998431. The next prime is 711998461. The reversal of 711998447 is 744899117.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 711998447 - 2⁴ = 711998431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 711998395 and 711998404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (711998407) 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, 1489298 + ... + 1489775.

It is an arithmetic number, because the mean of its divisors is an integer number (178744440).

Almost surely, 2^711998447 is an apocalyptic number.

711998447 is a deficient number, since it is larger than the sum of its proper divisors (2979313).

711998447 is a wasteful number, since it uses less digits than its factorization.

711998447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979312.

The product of its digits is 508032, while the sum is 50.

The square root of 711998447 is about 26683.2990276690. The cubic root of 711998447 is about 892.9483698890.

The spelling of 711998447 in words is "seven hundred eleven million, nine hundred ninety-eight thousand, four hundred forty-seven".