723829973 has 2 divisors, whose sum is σ = 723829974. Its totient is φ = 723829972.

The previous prime is 723829921. The next prime is 723829979. The reversal of 723829973 is 379928327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 723771409 + 58564 = 26903^2 + 242^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-723829973 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (723829979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361914986 + 361914987.

It is an arithmetic number, because the mean of its divisors is an integer number (361914987).

Almost surely, 2^723829973 is an apocalyptic number.

It is an amenable number.

723829973 is a deficient number, since it is larger than the sum of its proper divisors (1).

723829973 is an equidigital number, since it uses as much as digits as its factorization.

723829973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 50.

The square root of 723829973 is about 26904.0884067831. The cubic root of 723829973 is about 897.8673673953.

The spelling of 723829973 in words is "seven hundred twenty-three million, eight hundred twenty-nine thousand, nine hundred seventy-three".