723117023 has 4 divisors (see below), whose sum is σ = 726903168. Its totient is φ = 719330880.

The previous prime is 723117019. The next prime is 723117047. The reversal of 723117023 is 320711327.

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 723117023 - 2² = 723117019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 723116983 and 723117001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723117013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1892786 + ... + 1893167.

It is an arithmetic number, because the mean of its divisors is an integer number (181725792).

Almost surely, 2^723117023 is an apocalyptic number.

723117023 is a deficient number, since it is larger than the sum of its proper divisors (3786145).

723117023 is a wasteful number, since it uses less digits than its factorization.

723117023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3786144.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 723117023 is about 26890.8352975507. The cubic root of 723117023 is about 897.5724800832.

The spelling of 723117023 in words is "seven hundred twenty-three million, one hundred seventeen thousand, twenty-three".