723630893 has 2 divisors, whose sum is σ = 723630894. Its totient is φ = 723630892.

The previous prime is 723630883. The next prime is 723630931. The reversal of 723630893 is 398036327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 579942724 + 143688169 = 24082^2 + 11987^2 .

It is a cyclic number.

It is not a de Polignac number, because 723630893 - 2⁴ = 723630877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 723630893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (723630833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361815446 + 361815447.

It is an arithmetic number, because the mean of its divisors is an integer number (361815447).

Almost surely, 2^723630893 is an apocalyptic number.

It is an amenable number.

723630893 is a deficient number, since it is larger than the sum of its proper divisors (1).

723630893 is an equidigital number, since it uses as much as digits as its factorization.

723630893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 723630893 is about 26900.3883429217. The cubic root of 723630893 is about 897.7850442752.

The spelling of 723630893 in words is "seven hundred twenty-three million, six hundred thirty thousand, eight hundred ninety-three".