654604623 has 12 divisors (see below), whose sum is σ = 954216120. Its totient is φ = 432398736.

The previous prime is 654604543. The next prime is 654604661. The reversal of 654604623 is 326406456.

654604623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 654604623 - 2¹³ = 654596431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654604693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 332661 + ... + 334622.

It is an arithmetic number, because the mean of its divisors is an integer number (79518010).

Almost surely, 2^654604623 is an apocalyptic number.

654604623 is a deficient number, since it is larger than the sum of its proper divisors (299611497).

654604623 is a wasteful number, since it uses less digits than its factorization.

654604623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667398 (or 667395 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 654604623 is about 25585.2422892573. The cubic root of 654604623 is about 868.2797836455.

The spelling of 654604623 in words is "six hundred fifty-four million, six hundred four thousand, six hundred twenty-three".