727145723 has 2 divisors, whose sum is σ = 727145724. Its totient is φ = 727145722.

The previous prime is 727145711. The next prime is 727145767. The reversal of 727145723 is 327541727.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 727145723 - 2²⁰ = 726097147 is a prime.

It is not a weakly prime, because it can be changed into another prime (727147723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363572861 + 363572862.

It is an arithmetic number, because the mean of its divisors is an integer number (363572862).

Almost surely, 2^727145723 is an apocalyptic number.

727145723 is a deficient number, since it is larger than the sum of its proper divisors (1).

727145723 is an equidigital number, since it uses as much as digits as its factorization.

727145723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82320, while the sum is 38.

The square root of 727145723 is about 26965.6396734808. The cubic root of 727145723 is about 899.2362751445.

The spelling of 727145723 in words is "seven hundred twenty-seven million, one hundred forty-five thousand, seven hundred twenty-three".