723240079 has 2 divisors, whose sum is σ = 723240080. Its totient is φ = 723240078.

The previous prime is 723240047. The next prime is 723240097. The reversal of 723240079 is 970042327.

Together with next prime (723240097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 723240079 - 2⁵ = 723240047 is a prime.

It is equal to p_37393171 and since 723240079 and 37393171 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (723240379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361620039 + 361620040.

It is an arithmetic number, because the mean of its divisors is an integer number (361620040).

Almost surely, 2^723240079 is an apocalyptic number.

723240079 is a deficient number, since it is larger than the sum of its proper divisors (1).

723240079 is an equidigital number, since it uses as much as digits as its factorization.

723240079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 723240079 is about 26893.1232659950. The cubic root of 723240079 is about 897.6233918124.

The spelling of 723240079 in words is "seven hundred twenty-three million, two hundred forty thousand, seventy-nine".