654372623 has 2 divisors, whose sum is σ = 654372624. Its totient is φ = 654372622.

The previous prime is 654372613. The next prime is 654372643. The reversal of 654372623 is 326273456.

It is a happy number.

654372623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 654372623 - 2¹² = 654368527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654372613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327186311 + 327186312.

It is an arithmetic number, because the mean of its divisors is an integer number (327186312).

Almost surely, 2^654372623 is an apocalyptic number.

654372623 is a deficient number, since it is larger than the sum of its proper divisors (1).

654372623 is an equidigital number, since it uses as much as digits as its factorization.

654372623 is an odious number, because the sum of its binary digits is odd.

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

The square root of 654372623 is about 25580.7080238214. The cubic root of 654372623 is about 868.1771951490.

The spelling of 654372623 in words is "six hundred fifty-four million, three hundred seventy-two thousand, six hundred twenty-three".