9966258 has 12 divisors (see below), whose sum is σ = 21593598. Its totient is φ = 3322080.

The previous prime is 9966251. The next prime is 9966259. The reversal of 9966258 is 8526699.

It can be written as a sum of positive squares in only one way, i.e., 6517809 + 3448449 = 2553^2 + 1857^2 .

It is not an unprimeable number, because it can be changed into a prime (9966251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 276823 + ... + 276858.

Almost surely, 2^9966258 is an apocalyptic number.

9966258 is an abundant number, since it is smaller than the sum of its proper divisors (11627340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9966258 is a wasteful number, since it uses less digits than its factorization.

9966258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553689 (or 553686 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 9966258 is about 3156.9380735136. The cubic root of 9966258 is about 215.2008794987.

The spelling of 9966258 in words is "nine million, nine hundred sixty-six thousand, two hundred fifty-eight".