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87957361 is a prime number
BaseRepresentation
bin1010011111000…
…01111101110001
320010111200211001
411033201331301
5140004113421
612421122001
72115424312
oct517417561
9203450731
1087957361
1145716738
1225559301
13152b829b
14b978609
157ac6691
hex53e1f71

87957361 has 2 divisors, whose sum is σ = 87957362. Its totient is φ = 87957360.

The previous prime is 87957343. The next prime is 87957367. The reversal of 87957361 is 16375978.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63107136 + 24850225 = 7944^2 + 4985^2 .

It is a cyclic number.

It is not a de Polignac number, because 87957361 - 25 = 87957329 is a prime.

It is not a weakly prime, because it can be changed into another prime (87957367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43978680 + 43978681.

It is an arithmetic number, because the mean of its divisors is an integer number (43978681).

Almost surely, 287957361 is an apocalyptic number.

It is an amenable number.

87957361 is a deficient number, since it is larger than the sum of its proper divisors (1).

87957361 is an equidigital number, since it uses as much as digits as its factorization.

87957361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 46.

The square root of 87957361 is about 9378.5585779479. The cubic root of 87957361 is about 444.7241668964.

The spelling of 87957361 in words is "eighty-seven million, nine hundred fifty-seven thousand, three hundred sixty-one".