712787 has 4 divisors (see below), whose sum is σ = 714840. Its totient is φ = 710736.

The previous prime is 712781. The next prime is 712807. The reversal of 712787 is 787217.

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 712787 - 2⁸ = 712531 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 712787.

It is not an unprimeable number, because it can be changed into a prime (712781) 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, 362 + ... + 1247.

It is an arithmetic number, because the mean of its divisors is an integer number (178710).

2⁷¹²⁷⁸⁷ is an apocalyptic number.

712787 is a deficient number, since it is larger than the sum of its proper divisors (2053).

712787 is a wasteful number, since it uses less digits than its factorization.

712787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052.

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

The square root of 712787 is about 844.2671378184. The cubic root of 712787 is about 89.3277901192.

The spelling of 712787 in words is "seven hundred twelve thousand, seven hundred eighty-seven".