654494723 has 4 divisors (see below), whose sum is σ = 675607488. Its totient is φ = 633381960.

The previous prime is 654494719. The next prime is 654494741. The reversal of 654494723 is 327494456.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 654494723 - 2² = 654494719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654494773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10556336 + ... + 10556397.

It is an arithmetic number, because the mean of its divisors is an integer number (168901872).

Almost surely, 2^654494723 is an apocalyptic number.

654494723 is a deficient number, since it is larger than the sum of its proper divisors (21112765).

654494723 is a wasteful number, since it uses less digits than its factorization.

654494723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21112764.

The product of its digits is 725760, while the sum is 44.

The square root of 654494723 is about 25583.0944766266. The cubic root of 654494723 is about 868.2311897892.

The spelling of 654494723 in words is "six hundred fifty-four million, four hundred ninety-four thousand, seven hundred twenty-three".