654688349 has 8 divisors (see below), whose sum is σ = 772351488. Its totient is φ = 543059280.

The previous prime is 654688337. The next prime is 654688357. The reversal of 654688349 is 943886456.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 654688349 - 2²⁰ = 653639773 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 654688349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654688319) 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 7 ways as a sum of consecutive naturals, for example, 1508282 + ... + 1508715.

It is an arithmetic number, because the mean of its divisors is an integer number (96543936).

Almost surely, 2^654688349 is an apocalyptic number.

It is an amenable number.

654688349 is a deficient number, since it is larger than the sum of its proper divisors (117663139).

654688349 is a wasteful number, since it uses less digits than its factorization.

654688349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017035.

The product of its digits is 4976640, while the sum is 53.

The square root of 654688349 is about 25586.8784536137. The cubic root of 654688349 is about 868.3168006434.

The spelling of 654688349 in words is "six hundred fifty-four million, six hundred eighty-eight thousand, three hundred forty-nine".