654613273 has 4 divisors (see below), whose sum is σ = 655134480. Its totient is φ = 654092068.

The previous prime is 654613247. The next prime is 654613277. The reversal of 654613273 is 372316456.

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 a de Polignac number, because none of the positive numbers 2^k-654613273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654613277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258715 + ... + 261232.

It is an arithmetic number, because the mean of its divisors is an integer number (163783620).

Almost surely, 2^654613273 is an apocalyptic number.

It is an amenable number.

654613273 is a deficient number, since it is larger than the sum of its proper divisors (521207).

654613273 is a wasteful number, since it uses less digits than its factorization.

654613273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521206.

The product of its digits is 90720, while the sum is 37.

The square root of 654613273 is about 25585.4113314600. The cubic root of 654613273 is about 868.2836081357.

The spelling of 654613273 in words is "six hundred fifty-four million, six hundred thirteen thousand, two hundred seventy-three".