723847469 has 2 divisors, whose sum is σ = 723847470. Its totient is φ = 723847468.

The previous prime is 723847441. The next prime is 723847477. The reversal of 723847469 is 964748327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 497736100 + 226111369 = 22310^2 + 15037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-723847469 is a prime.

It is a super-2 number, since 2×723847469² = 1047910316755411922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (723847409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361923734 + 361923735.

It is an arithmetic number, because the mean of its divisors is an integer number (361923735).

Almost surely, 2^723847469 is an apocalyptic number.

It is an amenable number.

723847469 is a deficient number, since it is larger than the sum of its proper divisors (1).

723847469 is an equidigital number, since it uses as much as digits as its factorization.

723847469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 50.

The square root of 723847469 is about 26904.4135598604. The cubic root of 723847469 is about 897.8746015808.

The spelling of 723847469 in words is "seven hundred twenty-three million, eight hundred forty-seven thousand, four hundred sixty-nine".