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9998666 = 216672999
BaseRepresentation
bin100110001001…
…000101001010
3200210222120222
4212021011022
510024424131
6554150042
7150662426
oct46110512
920728528
109998666
11570a167
123422322
1320c1092
141483b86
15d2787b
hex98914a

9998666 has 8 divisors (see below), whose sum is σ = 15012000. Its totient is φ = 4994668.

The previous prime is 9998641. The next prime is 9998689. The reversal of 9998666 is 6668999.

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

9998666 is a strobogrammatic number because it is the same when read upside-down.

It is a Curzon number.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1835 + ... + 4833.

It is an arithmetic number, because the mean of its divisors is an integer number (1876500).

Almost surely, 29998666 is an apocalyptic number.

9998666 is a deficient number, since it is larger than the sum of its proper divisors (5013334).

9998666 is a wasteful number, since it uses less digits than its factorization.

9998666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4668.

The product of its digits is 1259712, while the sum is 53.

The square root of 9998666 is about 3162.0667292137. The cubic root of 9998666 is about 215.4338885242.

The spelling of 9998666 in words is "nine million, nine hundred ninety-eight thousand, six hundred sixty-six".

Divisors: 1 2 1667 2999 3334 5998 4999333 9998666