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84986837 = 139376977
BaseRepresentation
bin1010001000011…
…00101111010101
312220220210000122
411010030233111
5133224034322
612233321325
72051243015
oct504145725
9186823018
1084986837
1143a77961
1224566245
13147b8190
14b403c45
1576db442
hex510cbd5

84986837 has 8 divisors (see below), whose sum is σ = 91635096. Its totient is φ = 78354432.

The previous prime is 84986831. The next prime is 84986851. The reversal of 84986837 is 73868948.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4866436 + 80120401 = 2206^2 + 8951^2 .

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

It is not a de Polignac number, because 84986837 - 24 = 84986821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84986831) by changing a digit.

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, 8693 + ... + 15669.

It is an arithmetic number, because the mean of its divisors is an integer number (11454387).

Almost surely, 284986837 is an apocalyptic number.

It is an amenable number.

84986837 is a deficient number, since it is larger than the sum of its proper divisors (6648259).

84986837 is a wasteful number, since it uses less digits than its factorization.

84986837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7927.

The product of its digits is 2322432, while the sum is 53.

The square root of 84986837 is about 9218.8305657496. The cubic root of 84986837 is about 439.6602697818.

The spelling of 84986837 in words is "eighty-four million, nine hundred eighty-six thousand, eight hundred thirty-seven".

Divisors: 1 13 937 6977 12181 90701 6537449 84986837