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8489997 = 322393947
BaseRepresentation
bin100000011000…
…110000001101
3120222100002100
4200120300031
54133134442
6501545313
7132110115
oct40306015
916870070
108489997
11487972a
122a15239
1319b3489
1411b0045
15b2a84c
hex818c0d

8489997 has 12 divisors (see below), whose sum is σ = 12317760. Its totient is φ = 5634888.

The previous prime is 8489969. The next prime is 8490019. The reversal of 8489997 is 7999848.

It is not a de Polignac number, because 8489997 - 26 = 8489933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8489917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178 + ... + 4124.

It is an arithmetic number, because the mean of its divisors is an integer number (1026480).

Almost surely, 28489997 is an apocalyptic number.

It is an amenable number.

8489997 is a deficient number, since it is larger than the sum of its proper divisors (3827763).

8489997 is a wasteful number, since it uses less digits than its factorization.

8489997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4192 (or 4189 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 8489997 is about 2913.7599420680. The cubic root of 8489997 is about 204.0026672085.

The spelling of 8489997 in words is "eight million, four hundred eighty-nine thousand, nine hundred ninety-seven".

Divisors: 1 3 9 239 717 2151 3947 11841 35523 943333 2829999 8489997