723686413 has 8 divisors (see below), whose sum is σ = 790974720. Its totient is φ = 659144640.

The previous prime is 723686407. The next prime is 723686417. The reversal of 723686413 is 314686327.

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-723686413 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 (723686417) 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, 686083 + ... + 687136.

It is an arithmetic number, because the mean of its divisors is an integer number (98871840).

Almost surely, 2^723686413 is an apocalyptic number.

It is an amenable number.

723686413 is a deficient number, since it is larger than the sum of its proper divisors (67288307).

723686413 is a wasteful number, since it uses less digits than its factorization.

723686413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373267.

The product of its digits is 145152, while the sum is 40.

The square root of 723686413 is about 26901.4202784909. The cubic root of 723686413 is about 897.8080043005.

The spelling of 723686413 in words is "seven hundred twenty-three million, six hundred eighty-six thousand, four hundred thirteen".