723387 has 32 divisors (see below), whose sum is σ = 1216000. Its totient is φ = 381024.

The previous prime is 723379. The next prime is 723391. The reversal of 723387 is 783327.

723387 is an esthetic number in base 11, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 723387 - 2³ = 723379 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

723387 is an undulating number in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 723387.

It is not an unprimeable number, because it can be changed into a prime (723337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19533 + ... + 19569.

It is an arithmetic number, because the mean of its divisors is an integer number (38000).

2⁷²³³⁸⁷ is an apocalyptic number.

723387 is a deficient number, since it is larger than the sum of its proper divisors (492613).

723387 is a wasteful number, since it uses less digits than its factorization.

723387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 66 counting only the distinct ones).

The product of its digits is 7056, while the sum is 30.

The square root of 723387 is about 850.5216046639. The cubic root of 723387 is about 89.7684169601.

The spelling of 723387 in words is "seven hundred twenty-three thousand, three hundred eighty-seven".