654404723 has 4 divisors (see below), whose sum is σ = 747891120. Its totient is φ = 560918328.

The previous prime is 654404689. The next prime is 654404741. The reversal of 654404723 is 327404456.

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 654404723 - 2¹⁰ = 654403699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654404743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46743188 + ... + 46743201.

It is an arithmetic number, because the mean of its divisors is an integer number (186972780).

Almost surely, 2^654404723 is an apocalyptic number.

654404723 is a deficient number, since it is larger than the sum of its proper divisors (93486397).

654404723 is an equidigital number, since it uses as much as digits as its factorization.

654404723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93486396.

The product of its (nonzero) digits is 80640, while the sum is 35.

The square root of 654404723 is about 25581.3354420757. The cubic root of 654404723 is about 868.1913909508.

The spelling of 654404723 in words is "six hundred fifty-four million, four hundred four thousand, seven hundred twenty-three".