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87379 = 591481
BaseRepresentation
bin10101010101010011
311102212021
4111111103
510244004
61512311
7512515
oct252523
9142767
1087379
115a716
1242697
1330a06
1423bb5
151ad54
hex15553

87379 has 4 divisors (see below), whose sum is σ = 88920. Its totient is φ = 85840.

The previous prime is 87359. The next prime is 87383. The reversal of 87379 is 97378.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87379 - 27 = 87251 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87359) 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, 682 + ... + 799.

It is an arithmetic number, because the mean of its divisors is an integer number (22230).

287379 is an apocalyptic number.

87379 is a deficient number, since it is larger than the sum of its proper divisors (1541).

87379 is a wasteful number, since it uses less digits than its factorization.

87379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540.

The product of its digits is 10584, while the sum is 34.

The square root of 87379 is about 295.5993910684. The cubic root of 87379 is about 44.3747265737.

Subtracting 87379 from its reverse (97378), we obtain a palindrome (9999).

The spelling of 87379 in words is "eighty-seven thousand, three hundred seventy-nine".

Divisors: 1 59 1481 87379