723226979 has 4 divisors (see below), whose sum is σ = 723437640. Its totient is φ = 723016320.

The previous prime is 723226961. The next prime is 723227009. The reversal of 723226979 is 979622327.

723226979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 979622327 = 359 ⋅2728753.

It is a cyclic number.

It is not a de Polignac number, because 723226979 - 2⁸ = 723226723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (723226939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100094 + ... + 107075.

It is an arithmetic number, because the mean of its divisors is an integer number (180859410).

Almost surely, 2^723226979 is an apocalyptic number.

723226979 is a deficient number, since it is larger than the sum of its proper divisors (210661).

723226979 is a wasteful number, since it uses less digits than its factorization.

723226979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210660.

The product of its digits is 571536, while the sum is 47.

The square root of 723226979 is about 26892.8797082053. The cubic root of 723226979 is about 897.6179722486.

The spelling of 723226979 in words is "seven hundred twenty-three million, two hundred twenty-six thousand, nine hundred seventy-nine".