736723 has 4 divisors (see below), whose sum is σ = 793408. Its totient is φ = 680040.

The previous prime is 736721. The next prime is 736741. The reversal of 736723 is 327637.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 327637 = 47 ⋅6971.

It is a cyclic number.

It is not a de Polignac number, because 736723 - 2¹ = 736721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 736691 and 736700.

It is not an unprimeable number, because it can be changed into a prime (736721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28323 + ... + 28348.

It is an arithmetic number, because the mean of its divisors is an integer number (198352).

2⁷³⁶⁷²³ is an apocalyptic number.

736723 is a deficient number, since it is larger than the sum of its proper divisors (56685).

736723 is a wasteful number, since it uses less digits than its factorization.

736723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56684.

The product of its digits is 5292, while the sum is 28.

The square root of 736723 is about 858.3256957589. The cubic root of 736723 is about 90.3167031684.

The spelling of 736723 in words is "seven hundred thirty-six thousand, seven hundred twenty-three".