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87236801 is a prime number
BaseRepresentation
bin1010011001100…
…10000011000001
320002011002101122
411030302003001
5134313034201
612353442025
72106333461
oct514620301
9202132348
1087236801
1145274333
1225270315
13150c5312
14b82bba1
1579d2e1b
hex53320c1

87236801 has 2 divisors, whose sum is σ = 87236802. Its totient is φ = 87236800.

The previous prime is 87236789. The next prime is 87236803. The reversal of 87236801 is 10863278.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58507201 + 28729600 = 7649^2 + 5360^2 .

It is a cyclic number.

It is not a de Polignac number, because 87236801 - 214 = 87220417 is a prime.

It is a super-2 number, since 2×872368012 = 15220518897427202, which contains 22 as substring.

Together with 87236803, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87236803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43618400 + 43618401.

It is an arithmetic number, because the mean of its divisors is an integer number (43618401).

Almost surely, 287236801 is an apocalyptic number.

It is an amenable number.

87236801 is a deficient number, since it is larger than the sum of its proper divisors (1).

87236801 is an equidigital number, since it uses as much as digits as its factorization.

87236801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 87236801 is about 9340.0642931406. The cubic root of 87236801 is about 443.5064196228.

It can be divided in two parts, 872 and 36801, that added together give a palindrome (37673).

The spelling of 87236801 in words is "eighty-seven million, two hundred thirty-six thousand, eight hundred one".