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84885769 is a prime number
BaseRepresentation
bin1010000111101…
…00000100001001
312220201122101101
411003310010021
5133212321034
612231221401
72050342243
oct503640411
9186648341
1084885769
1143a08a31
1224517861
1314781187
14b3b9093
1576bb514
hex50f4109

84885769 has 2 divisors, whose sum is σ = 84885770. Its totient is φ = 84885768.

The previous prime is 84885763. The next prime is 84885803. The reversal of 84885769 is 96758848.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84879369 + 6400 = 9213^2 + 80^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-84885769 is a prime.

It is a super-2 number, since 2×848857692 = 14411187557442722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84885763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42442884 + 42442885.

It is an arithmetic number, because the mean of its divisors is an integer number (42442885).

Almost surely, 284885769 is an apocalyptic number.

It is an amenable number.

84885769 is a deficient number, since it is larger than the sum of its proper divisors (1).

84885769 is an equidigital number, since it uses as much as digits as its factorization.

84885769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 55.

The square root of 84885769 is about 9213.3473287400. The cubic root of 84885769 is about 439.4859164666.

The spelling of 84885769 in words is "eighty-four million, eight hundred eighty-five thousand, seven hundred sixty-nine".