723112385 has 4 divisors (see below), whose sum is σ = 867734868. Its totient is φ = 578489904.

The previous prime is 723112363. The next prime is 723112447. The reversal of 723112385 is 583211327.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583211327 = 19 ⋅30695333.

It can be written as a sum of positive squares in 2 ways, for example, as 178730161 + 544382224 = 13369^2 + 23332^2 .

It is a cyclic number.

It is not a de Polignac number, because 723112385 - 2²⁶ = 656003521 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72311234 + ... + 72311243.

It is an arithmetic number, because the mean of its divisors is an integer number (216933717).

Almost surely, 2^723112385 is an apocalyptic number.

It is an amenable number.

723112385 is a deficient number, since it is larger than the sum of its proper divisors (144622483).

723112385 is a wasteful number, since it uses less digits than its factorization.

723112385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144622482.

The product of its digits is 10080, while the sum is 32.

The square root of 723112385 is about 26890.7490598533. The cubic root of 723112385 is about 897.5705610991.

The spelling of 723112385 in words is "seven hundred twenty-three million, one hundred twelve thousand, three hundred eighty-five".