654632723 has 2 divisors, whose sum is σ = 654632724. Its totient is φ = 654632722.

The previous prime is 654632653. The next prime is 654632743. The reversal of 654632723 is 327236456.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 654632723 - 2⁸ = 654632467 is a prime.

It is not a weakly prime, because it can be changed into another prime (654632743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327316361 + 327316362.

It is an arithmetic number, because the mean of its divisors is an integer number (327316362).

Almost surely, 2^654632723 is an apocalyptic number.

654632723 is a deficient number, since it is larger than the sum of its proper divisors (1).

654632723 is an equidigital number, since it uses as much as digits as its factorization.

654632723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 38.

The square root of 654632723 is about 25585.7914280563. The cubic root of 654632723 is about 868.2922075891.

It can be divided in two parts, 65463 and 2723, that added together give a palindrome (68186).

The spelling of 654632723 in words is "six hundred fifty-four million, six hundred thirty-two thousand, seven hundred twenty-three".