30087 has 6 divisors (see below), whose sum is σ = 43472. Its totient is φ = 20052.
The previous prime is 30071. The next prime is 30089. The reversal of 30087 is 78003.
It is not a de Polignac number, because 30087 - 24 = 30071 is a prime.
It is a Duffinian number.
30087 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30089) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1663 + ... + 1680.
230087 is an apocalyptic number.
30087 is a deficient number, since it is larger than the sum of its proper divisors (13385).
30087 is a wasteful number, since it uses less digits than its factorization.
30087 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3349 (or 3346 counting only the distinct ones).
The product of its (nonzero) digits is 168, while the sum is 18.
The square root of 30087 is about 173.4560463057. The cubic root of 30087 is about 31.1023326518.
The spelling of 30087 in words is "thirty thousand, eighty-seven".
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