723146389 has 8 divisors (see below), whose sum is σ = 848789888. Its totient is φ = 603087120.

The previous prime is 723146383. The next prime is 723146419. The reversal of 723146389 is 983641327.

723146389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 723146389 - 2⁷ = 723146261 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 (723146383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1395777 + ... + 1396294.

It is an arithmetic number, because the mean of its divisors is an integer number (106098736).

Almost surely, 2^723146389 is an apocalyptic number.

It is an amenable number.

723146389 is a deficient number, since it is larger than the sum of its proper divisors (125643499).

723146389 is a wasteful number, since it uses less digits than its factorization.

723146389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2792115.

The product of its digits is 217728, while the sum is 43.

The square root of 723146389 is about 26891.3813144658. The cubic root of 723146389 is about 897.5846301482.

The spelling of 723146389 in words is "seven hundred twenty-three million, one hundred forty-six thousand, three hundred eighty-nine".