723663001 has 2 divisors, whose sum is σ = 723663002. Its totient is φ = 723663000.

The previous prime is 723662963. The next prime is 723663019. The reversal of 723663001 is 100366327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 600985225 + 122677776 = 24515^2 + 11076^2 .

It is an emirp because it is prime and its reverse (100366327) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 723663001 - 2²³ = 715274393 is a prime.

It is equal to p_37413901 and since 723663001 and 37413901 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (723663041) 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, 361831500 + 361831501.

It is an arithmetic number, because the mean of its divisors is an integer number (361831501).

Almost surely, 2^723663001 is an apocalyptic number.

It is an amenable number.

723663001 is a deficient number, since it is larger than the sum of its proper divisors (1).

723663001 is an equidigital number, since it uses as much as digits as its factorization.

723663001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 723663001 is about 26900.9851306602. The cubic root of 723663001 is about 897.7983225253.

The spelling of 723663001 in words is "seven hundred twenty-three million, six hundred sixty-three thousand, one".