723753081 has 12 divisors (see below), whose sum is σ = 1069733808. Its totient is φ = 471280824.

The previous prime is 723753077. The next prime is 723753091. The reversal of 723753081 is 180357327.

723753081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 723753081 - 2² = 723753077 is a prime.

It is a super-2 number, since 2×723753081² = 1047637044513985122, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (723753011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 934695 + ... + 935468.

It is an arithmetic number, because the mean of its divisors is an integer number (89144484).

Almost surely, 2^723753081 is an apocalyptic number.

It is an amenable number.

723753081 is a deficient number, since it is larger than the sum of its proper divisors (345980727).

723753081 is a wasteful number, since it uses less digits than its factorization.

723753081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870212 (or 1870209 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 723753081 is about 26902.6593666872. The cubic root of 723753081 is about 897.8355729753.

The spelling of 723753081 in words is "seven hundred twenty-three million, seven hundred fifty-three thousand, eighty-one".