723829813 has 8 divisors (see below), whose sum is σ = 844116800. Its totient is φ = 620425260.

The previous prime is 723829781. The next prime is 723829891. The reversal of 723829813 is 318928327.

It is not a de Polignac number, because 723829813 - 2⁵ = 723829781 is a prime.

It is a super-2 number, since 2×723829813² = 1047859196375229938, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 723829813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723824813) 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 7 ways as a sum of consecutive naturals, for example, 1054803 + ... + 1055488.

It is an arithmetic number, because the mean of its divisors is an integer number (105514600).

Almost surely, 2^723829813 is an apocalyptic number.

It is an amenable number.

723829813 is a deficient number, since it is larger than the sum of its proper divisors (120286987).

723829813 is an equidigital number, since it uses as much as digits as its factorization.

723829813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110312 (or 2110298 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 723829813 is about 26904.0854332572. The cubic root of 723829813 is about 897.8673012385.

The spelling of 723829813 in words is "seven hundred twenty-three million, eight hundred twenty-nine thousand, eight hundred thirteen".