731296 has 12 divisors (see below), whose sum is σ = 1439802. Its totient is φ = 365632.

The previous prime is 731287. The next prime is 731299. The reversal of 731296 is 692137.

It can be written as a sum of positive squares in only one way, i.e., 698896 + 32400 = 836^2 + 180^2 .

It is not an unprimeable number, because it can be changed into a prime (731299) 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 as a sum of consecutive naturals, namely, 11395 + ... + 11458.

2⁷³¹²⁹⁶ is an apocalyptic number.

It is an amenable number.

731296 is a deficient number, since it is larger than the sum of its proper divisors (708506).

731296 is a wasteful number, since it uses less digits than its factorization.

731296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22863 (or 22855 counting only the distinct ones).

The product of its digits is 2268, while the sum is 28.

The square root of 731296 is about 855.1584648473. The cubic root of 731296 is about 90.0943865752.

Subtracting from 731296 its product of digits (2268), we obtain a triangular number (729028 = T₁₂₀₇).

It can be divided in two parts, 73 and 1296, that added together give a square (1369 = 37²).

The spelling of 731296 in words is "seven hundred thirty-one thousand, two hundred ninety-six".