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87097 = 251347
BaseRepresentation
bin10101010000111001
311102110211
4111100321
510241342
61511121
7511633
oct252071
9142424
1087097
115a48a
12424a1
133084a
1423a53
151ac17
hex15439

87097 has 4 divisors (see below), whose sum is σ = 87696. Its totient is φ = 86500.

The previous prime is 87083. The next prime is 87103. The reversal of 87097 is 79078.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 87097 - 27 = 86969 is a prime.

It is a Duffinian number.

87097 is a lucky 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, 78 + ... + 424.

It is an arithmetic number, because the mean of its divisors is an integer number (21924).

287097 is an apocalyptic number.

It is an amenable number.

87097 is a deficient number, since it is larger than the sum of its proper divisors (599).

87097 is a wasteful number, since it uses less digits than its factorization.

87097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 87097 is about 295.1220086676. The cubic root of 87097 is about 44.3269379786.

The spelling of 87097 in words is "eighty-seven thousand, ninety-seven".

Divisors: 1 251 347 87097