723116943 has 40 divisors (see below), whose sum is σ = 1145166000. Its totient is φ = 450439920.

The previous prime is 723116917. The next prime is 723116957. The reversal of 723116943 is 349611327.

It is not a de Polignac number, because 723116943 - 2¹⁷ = 722985871 is a prime.

It is a super-2 number, since 2×723116943² = 1045796226507330498, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

Its product of digits (27216) is a multiple of the sum of its prime divisors (63).

It is a junction number, because it is equal to n+sod(n) for n = 723116898 and 723116907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723116983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23326338 + ... + 23326368.

It is an arithmetic number, because the mean of its divisors is an integer number (28629150).

Almost surely, 2^723116943 is an apocalyptic number.

723116943 is a deficient number, since it is larger than the sum of its proper divisors (422049057).

723116943 is an frugal number, since it uses more digits than its factorization.

723116943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 63 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 723116943 is about 26890.8338100551. The cubic root of 723116943 is about 897.5724469830.

The spelling of 723116943 in words is "seven hundred twenty-three million, one hundred sixteen thousand, nine hundred forty-three".