731266 has 8 divisors (see below), whose sum is σ = 1105920. Its totient is φ = 362628.

The previous prime is 731261. The next prime is 731267. The reversal of 731266 is 662137.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×731266³ = 1173133398794187288, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 731266.

It is not an unprimeable number, because it can be changed into a prime (731261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1186 + ... + 1693.

It is an arithmetic number, because the mean of its divisors is an integer number (138240).

2⁷³¹²⁶⁶ is an apocalyptic number.

731266 is a deficient number, since it is larger than the sum of its proper divisors (374654).

731266 is a wasteful number, since it uses less digits than its factorization.

731266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008.

The product of its digits is 1512, while the sum is 25.

The square root of 731266 is about 855.1409240587. The cubic root of 731266 is about 90.0931545758.

The spelling of 731266 in words is "seven hundred thirty-one thousand, two hundred sixty-six".