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87067 = 831049
BaseRepresentation
bin10101010000011011
311102102201
4111100123
510241232
61511031
7511561
oct252033
9142381
1087067
115a462
1242477
1330826
1423a31
151abe7
hex1541b

87067 has 4 divisors (see below), whose sum is σ = 88200. Its totient is φ = 85936.

The previous prime is 87049. The next prime is 87071. The reversal of 87067 is 76078.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76078 = 238039.

It is a cyclic number.

It is not a de Polignac number, because 87067 - 27 = 86939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442 + ... + 607.

It is an arithmetic number, because the mean of its divisors is an integer number (22050).

287067 is an apocalyptic number.

87067 is a deficient number, since it is larger than the sum of its proper divisors (1133).

87067 is a wasteful number, since it uses less digits than its factorization.

87067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 87067 is about 295.0711778538. The cubic root of 87067 is about 44.3218480182.

The spelling of 87067 in words is "eighty-seven thousand, sixty-seven".

Divisors: 1 83 1049 87067