712278 has 24 divisors (see below), whose sum is σ = 1764048. Its totient is φ = 203472.

The previous prime is 712237. The next prime is 712279. The reversal of 712278 is 872217.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2701 + ... + 2952.

It is an arithmetic number, because the mean of its divisors is an integer number (73502).

2⁷¹²²⁷⁸ is an apocalyptic number.

712278 is an abundant number, since it is smaller than the sum of its proper divisors (1051770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

712278 is a wasteful number, since it uses less digits than its factorization.

712278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5668 (or 5665 counting only the distinct ones).

The product of its digits is 1568, while the sum is 27.

The square root of 712278 is about 843.9656391110. The cubic root of 712278 is about 89.3065221142.

It can be divided in two parts, 712 and 278, that added together give a triangular number (990 = T₄₄).

The spelling of 712278 in words is "seven hundred twelve thousand, two hundred seventy-eight".