723742727 has 4 divisors (see below), whose sum is σ = 723832680. Its totient is φ = 723652776.

The previous prime is 723742703. The next prime is 723742729. The reversal of 723742727 is 727247327.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 723742727 - 2¹⁰ = 723741703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723742729) 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 3 ways as a sum of consecutive naturals, for example, 31577 + ... + 49442.

It is an arithmetic number, because the mean of its divisors is an integer number (180958170).

Almost surely, 2^723742727 is an apocalyptic number.

723742727 is a deficient number, since it is larger than the sum of its proper divisors (89953).

723742727 is an equidigital number, since it uses as much as digits as its factorization.

723742727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89952.

The product of its digits is 230496, while the sum is 41.

The square root of 723742727 is about 26902.4669314916. The cubic root of 723742727 is about 897.8312914811.

The spelling of 723742727 in words is "seven hundred twenty-three million, seven hundred forty-two thousand, seven hundred twenty-seven".