723638496 has 48 divisors (see below), whose sum is σ = 2170917504. Its totient is φ = 206753664.

The previous prime is 723638491. The next prime is 723638497. The reversal of 723638496 is 694836327.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723638491) 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, 537750 + ... + 539093.

It is an arithmetic number, because the mean of its divisors is an integer number (45227448).

Almost surely, 2^723638496 is an apocalyptic number.

It is an amenable number.

723638496 is an abundant number, since it is smaller than the sum of its proper divisors (1447279008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

723638496 is a wasteful number, since it uses less digits than its factorization.

723638496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076863 (or 1076855 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 48.

The square root of 723638496 is about 26900.5296602130. The cubic root of 723638496 is about 897.7881885282.

The spelling of 723638496 in words is "seven hundred twenty-three million, six hundred thirty-eight thousand, four hundred ninety-six".