723013 has 8 divisors (see below), whose sum is σ = 758016. Its totient is φ = 688800.

The previous prime is 722983. The next prime is 723029. The reversal of 723013 is 310327.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-723013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723043) 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 7 ways as a sum of consecutive naturals, for example, 2433 + ... + 2713.

It is an arithmetic number, because the mean of its divisors is an integer number (94752).

2⁷²³⁰¹³ is an apocalyptic number.

It is an amenable number.

723013 is a deficient number, since it is larger than the sum of its proper divisors (35003).

723013 is a wasteful number, since it uses less digits than its factorization.

723013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395.

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 723013 is about 850.3017111590. The cubic root of 723013 is about 89.7529438336.

Subtracting from 723013 its reverse (310327), we obtain a triangular number (412686 = T₉₀₈).

The spelling of 723013 in words is "seven hundred twenty-three thousand, thirteen".