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87857353 is a prime number
BaseRepresentation
bin1010011110010…
…01100011001001
320010022121122001
411033021203021
5134442413403
612415031001
72114526613
oct517114311
9203277561
1087857353
1145658591
122550b461
13152818cc
14b94ddb3
157aa6c1d
hex53c98c9

87857353 has 2 divisors, whose sum is σ = 87857354. Its totient is φ = 87857352.

The previous prime is 87857347. The next prime is 87857359. The reversal of 87857353 is 35375878.

It is a balanced prime because it is at equal distance from previous prime (87857347) and next prime (87857359).

It can be written as a sum of positive squares in only one way, i.e., 48066489 + 39790864 = 6933^2 + 6308^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-87857353 is a prime.

It is not a weakly prime, because it can be changed into another prime (87857359) 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 as a sum of consecutive naturals, namely, 43928676 + 43928677.

It is an arithmetic number, because the mean of its divisors is an integer number (43928677).

Almost surely, 287857353 is an apocalyptic number.

It is an amenable number.

87857353 is a deficient number, since it is larger than the sum of its proper divisors (1).

87857353 is an equidigital number, since it uses as much as digits as its factorization.

87857353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 705600, while the sum is 46.

The square root of 87857353 is about 9373.2253253616. The cubic root of 87857353 is about 444.5555517056. Note that the first 5 decimals are identical.

The spelling of 87857353 in words is "eighty-seven million, eight hundred fifty-seven thousand, three hundred fifty-three".