9959559 has 8 divisors (see below), whose sum is σ = 13313520. Its totient is φ = 6622656.

The previous prime is 9959533. The next prime is 9959563. The reversal of 9959559 is 9559599.

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

It is not a de Polignac number, because 9959559 - 2⁷ = 9959431 is a prime.

9959559 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9959659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2832 + ... + 5285.

It is an arithmetic number, because the mean of its divisors is an integer number (1664190).

Almost surely, 2^9959559 is an apocalyptic number.

9959559 is a deficient number, since it is larger than the sum of its proper divisors (3353961).

9959559 is a wasteful number, since it uses less digits than its factorization.

9959559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8529.

The product of its digits is 820125, while the sum is 51.

The square root of 9959559 is about 3155.8768987399. The cubic root of 9959559 is about 215.1526516410.

The spelling of 9959559 in words is "nine million, nine hundred fifty-nine thousand, five hundred fifty-nine".