723381427 has 2 divisors, whose sum is σ = 723381428. Its totient is φ = 723381426.

The previous prime is 723381419. The next prime is 723381457. The reversal of 723381427 is 724183327.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 723381427 - 2³ = 723381419 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (723381457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361690713 + 361690714.

It is an arithmetic number, because the mean of its divisors is an integer number (361690714).

Almost surely, 2^723381427 is an apocalyptic number.

723381427 is a deficient number, since it is larger than the sum of its proper divisors (1).

723381427 is an equidigital number, since it uses as much as digits as its factorization.

723381427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 37.

The square root of 723381427 is about 26895.7510956656. The cubic root of 723381427 is about 897.6818643309.

The spelling of 723381427 in words is "seven hundred twenty-three million, three hundred eighty-one thousand, four hundred twenty-seven".