712445885 has 4 divisors (see below), whose sum is σ = 854935068. Its totient is φ = 569956704.

The previous prime is 712445863. The next prime is 712445893. The reversal of 712445885 is 588544217.

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

It can be written as a sum of positive squares in 2 ways, for example, as 313325401 + 399120484 = 17701^2 + 19978^2 .

It is a cyclic number.

It is not a de Polignac number, because 712445885 - 2¹⁰ = 712444861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71244584 + ... + 71244593.

It is an arithmetic number, because the mean of its divisors is an integer number (213733767).

Almost surely, 2^712445885 is an apocalyptic number.

It is an amenable number.

712445885 is a deficient number, since it is larger than the sum of its proper divisors (142489183).

712445885 is a wasteful number, since it uses less digits than its factorization.

712445885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142489182.

The product of its digits is 358400, while the sum is 44.

The square root of 712445885 is about 26691.6819440065. The cubic root of 712445885 is about 893.1353812372.

The spelling of 712445885 in words is "seven hundred twelve million, four hundred forty-five thousand, eight hundred eighty-five".