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84872697 = 3713310889
BaseRepresentation
bin1010000111100…
…00110111111001
312220200222110020
411003300313321
5133211411242
612231041053
72050256160
oct503606771
9186628406
1084872697
11439aa128
1224510189
1314778240
14b3b43d7
1576b76ec
hex50f0df9

84872697 has 16 divisors (see below), whose sum is σ = 139278720. Its totient is φ = 44767872.

The previous prime is 84872681. The next prime is 84872701. The reversal of 84872697 is 79627848.

It is not a de Polignac number, because 84872697 - 24 = 84872681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84872617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155172 + ... + 155717.

It is an arithmetic number, because the mean of its divisors is an integer number (8704920).

Almost surely, 284872697 is an apocalyptic number.

It is an amenable number.

84872697 is a deficient number, since it is larger than the sum of its proper divisors (54406023).

84872697 is a wasteful number, since it uses less digits than its factorization.

84872697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310912.

The product of its digits is 1354752, while the sum is 51.

The square root of 84872697 is about 9212.6378958472. The cubic root of 84872697 is about 439.4633557363.

The spelling of 84872697 in words is "eighty-four million, eight hundred seventy-two thousand, six hundred ninety-seven".

Divisors: 1 3 7 13 21 39 91 273 310889 932667 2176223 4041557 6528669 12124671 28290899 84872697