712689771 has 4 divisors (see below), whose sum is σ = 950253032. Its totient is φ = 475126512.

The previous prime is 712689763. The next prime is 712689773. The reversal of 712689771 is 177986217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 177986217 = 3 ⋅59328739.

It is not a de Polignac number, because 712689771 - 2³ = 712689763 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 712689771.

It is not an unprimeable number, because it can be changed into a prime (712689773) 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, 118781626 + ... + 118781631.

It is an arithmetic number, because the mean of its divisors is an integer number (237563258).

Almost surely, 2^712689771 is an apocalyptic number.

712689771 is a deficient number, since it is larger than the sum of its proper divisors (237563261).

712689771 is a wasteful number, since it uses less digits than its factorization.

712689771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237563260.

The product of its digits is 296352, while the sum is 48.

The square root of 712689771 is about 26696.2501299340. The cubic root of 712689771 is about 893.2372829487.

The spelling of 712689771 in words is "seven hundred twelve million, six hundred eighty-nine thousand, seven hundred seventy-one".