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9898985 = 56433079
BaseRepresentation
bin100101110000…
…101111101001
3200121220212002
4211300233221
510013231420
6552100345
7150066005
oct45605751
920556762
109898985
115651288
1233946b5
1320878b5
141459705
15d08075
hex970be9

9898985 has 8 divisors (see below), whose sum is σ = 11901120. Its totient is φ = 7904304.

The previous prime is 9898979. The next prime is 9899003. The reversal of 9898985 is 5898989.

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

It is a cyclic number.

It is not a de Polignac number, because 9898985 - 26 = 9898921 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 9898985.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1676 + ... + 4754.

It is an arithmetic number, because the mean of its divisors is an integer number (1487640).

Almost surely, 29898985 is an apocalyptic number.

It is an amenable number.

9898985 is a deficient number, since it is larger than the sum of its proper divisors (2002135).

9898985 is a wasteful number, since it uses less digits than its factorization.

9898985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3727.

The product of its digits is 1866240, while the sum is 56.

The square root of 9898985 is about 3146.2652462880. The cubic root of 9898985 is about 214.7155784773.

The spelling of 9898985 in words is "nine million, eight hundred ninety-eight thousand, nine hundred eighty-five".

Divisors: 1 5 643 3079 3215 15395 1979797 9898985