662698559 has 4 divisors (see below), whose sum is σ = 663031416. Its totient is φ = 662365704.

The previous prime is 662698523. The next prime is 662698583. The reversal of 662698559 is 955896266.

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 662698559 - 2⁸ = 662698303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662698159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163424 + ... + 167429.

It is an arithmetic number, because the mean of its divisors is an integer number (165757854).

Almost surely, 2^662698559 is an apocalyptic number.

662698559 is a deficient number, since it is larger than the sum of its proper divisors (332857).

662698559 is a wasteful number, since it uses less digits than its factorization.

662698559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332856.

The product of its digits is 6998400, while the sum is 56.

The square root of 662698559 is about 25742.9322144934. The cubic root of 662698559 is about 871.8437838269.

The spelling of 662698559 in words is "six hundred sixty-two million, six hundred ninety-eight thousand, five hundred fifty-nine".