723760045 has 8 divisors (see below), whose sum is σ = 870577560. Its totient is φ = 577631040.

The previous prime is 723760031. The next prime is 723760049. The reversal of 723760045 is 540067327.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22410756 + 701349289 = 4734^2 + 26483^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 723760045 - 2²⁹ = 186889133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723760049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169810 + ... + 174019.

It is an arithmetic number, because the mean of its divisors is an integer number (108822195).

Almost surely, 2^723760045 is an apocalyptic number.

It is an amenable number.

723760045 is a deficient number, since it is larger than the sum of its proper divisors (146817515).

723760045 is a wasteful number, since it uses less digits than its factorization.

723760045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344255.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 723760045 is about 26902.7887959594. The cubic root of 723760045 is about 897.8384526438.

The spelling of 723760045 in words is "seven hundred twenty-three million, seven hundred sixty thousand, forty-five".