723501613 has 8 divisors (see below), whose sum is σ = 734070528. Its totient is φ = 712950624.

The previous prime is 723501607. The next prime is 723501629. The reversal of 723501613 is 316105327.

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

It is a cyclic number.

It is not a de Polignac number, because 723501613 - 2¹⁷ = 723370541 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 (723501313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91620 + ... + 99202.

It is an arithmetic number, because the mean of its divisors is an integer number (91758816).

Almost surely, 2^723501613 is an apocalyptic number.

723501613 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

723501613 is a deficient number, since it is larger than the sum of its proper divisors (10568915).

723501613 is a wasteful number, since it uses less digits than its factorization.

723501613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8963.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 723501613 is about 26897.9852963005. The cubic root of 723501613 is about 897.7315766099.

The spelling of 723501613 in words is "seven hundred twenty-three million, five hundred one thousand, six hundred thirteen".