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8797989 = 319914737
BaseRepresentation
bin100001100011…
…111100100101
3121112222120110
4201203330211
54223013424
6512323233
7134532054
oct41437445
917488513
108797989
114a6a072
122b43519
131a90715
14125039b
15b8bc29
hex863f25

8797989 has 8 divisors (see below), whose sum is σ = 11790400. Its totient is φ = 5835456.

The previous prime is 8797979. The next prime is 8798011. The reversal of 8797989 is 9897978.

It is a happy number.

8797989 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2k-8797989 is a prime.

It is a super-2 number, since 2×87979892 = 154809220888242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8797909) 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, 6772 + ... + 7965.

It is an arithmetic number, because the mean of its divisors is an integer number (1473800).

Almost surely, 28797989 is an apocalyptic number.

It is an amenable number.

8797989 is a deficient number, since it is larger than the sum of its proper divisors (2992411).

8797989 is a wasteful number, since it uses less digits than its factorization.

8797989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14939.

The product of its digits is 2286144, while the sum is 57.

The square root of 8797989 is about 2966.1404214905. The cubic root of 8797989 is about 206.4402952620.

The spelling of 8797989 in words is "eight million, seven hundred ninety-seven thousand, nine hundred eighty-nine".

Divisors: 1 3 199 597 14737 44211 2932663 8797989