659579387 has 2 divisors, whose sum is σ = 659579388. Its totient is φ = 659579386.

The previous prime is 659579377. The next prime is 659579419. The reversal of 659579387 is 783975956.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 659579387 - 2¹⁰ = 659578363 is a prime.

It is not a weakly prime, because it can be changed into another prime (659579377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329789693 + 329789694.

It is an arithmetic number, because the mean of its divisors is an integer number (329789694).

Almost surely, 2^659579387 is an apocalyptic number.

659579387 is a deficient number, since it is larger than the sum of its proper divisors (1).

659579387 is an equidigital number, since it uses as much as digits as its factorization.

659579387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14288400, while the sum is 59.

The square root of 659579387 is about 25682.2776832585. The cubic root of 659579387 is about 870.4737750675.

The spelling of 659579387 in words is "six hundred fifty-nine million, five hundred seventy-nine thousand, three hundred eighty-seven".