654676489 has 4 divisors (see below), whose sum is σ = 668605824. Its totient is φ = 640747156.

The previous prime is 654676469. The next prime is 654676493. The reversal of 654676489 is 984676456.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 654676489 - 2¹⁹ = 654152201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654676469) 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, 6964597 + ... + 6964690.

It is an arithmetic number, because the mean of its divisors is an integer number (167151456).

Almost surely, 2^654676489 is an apocalyptic number.

It is an amenable number.

654676489 is a deficient number, since it is larger than the sum of its proper divisors (13929335).

654676489 is a wasteful number, since it uses less digits than its factorization.

654676489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13929334.

The product of its digits is 8709120, while the sum is 55.

The square root of 654676489 is about 25586.6466931484. The cubic root of 654676489 is about 868.3115572837.

The spelling of 654676489 in words is "six hundred fifty-four million, six hundred seventy-six thousand, four hundred eighty-nine".