654339841 has 4 divisors (see below), whose sum is σ = 688778800. Its totient is φ = 619900884.

The previous prime is 654339839. The next prime is 654339883. The reversal of 654339841 is 148933456.

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 654339841 - 2¹ = 654339839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654339821) 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, 17219451 + ... + 17219488.

It is an arithmetic number, because the mean of its divisors is an integer number (172194700).

Almost surely, 2^654339841 is an apocalyptic number.

It is an amenable number.

654339841 is a deficient number, since it is larger than the sum of its proper divisors (34438959).

654339841 is a wasteful number, since it uses less digits than its factorization.

654339841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34438958.

The product of its digits is 311040, while the sum is 43.

The square root of 654339841 is about 25580.0672594894. The cubic root of 654339841 is about 868.1626972624.

The spelling of 654339841 in words is "six hundred fifty-four million, three hundred thirty-nine thousand, eight hundred forty-one".