659791747 has 4 divisors (see below), whose sum is σ = 660394296. Its totient is φ = 659189200.

The previous prime is 659791729. The next prime is 659791771. The reversal of 659791747 is 747197956.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 659791747 - 2²⁷ = 525574019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (659791247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299629 + ... + 301822.

It is an arithmetic number, because the mean of its divisors is an integer number (165098574).

Almost surely, 2^659791747 is an apocalyptic number.

659791747 is a deficient number, since it is larger than the sum of its proper divisors (602549).

659791747 is a wasteful number, since it uses less digits than its factorization.

659791747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602548.

The product of its digits is 3333960, while the sum is 55.

The square root of 659791747 is about 25686.4117190393. The cubic root of 659791747 is about 870.5671850898.

The spelling of 659791747 in words is "six hundred fifty-nine million, seven hundred ninety-one thousand, seven hundred forty-seven".