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87974 = 243987
BaseRepresentation
bin10101011110100110
311110200022
4111132212
510303344
61515142
7514325
oct253646
9143608
1087974
1160107
1242ab2
1331073
14240bc
151b0ee
hex157a6

87974 has 4 divisors (see below), whose sum is σ = 131964. Its totient is φ = 43986.

The previous prime is 87973. The next prime is 87977. The reversal of 87974 is 47978.

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

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 87974.

It is not an unprimeable number, because it can be changed into a prime (87973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21992 + ... + 21995.

It is an arithmetic number, because the mean of its divisors is an integer number (32991).

287974 is an apocalyptic number.

87974 is a deficient number, since it is larger than the sum of its proper divisors (43990).

87974 is a wasteful number, since it uses less digits than its factorization.

87974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43989.

The product of its digits is 14112, while the sum is 35.

The square root of 87974 is about 296.6041132554. The cubic root of 87974 is about 44.4752208131.

The spelling of 87974 in words is "eighty-seven thousand, nine hundred seventy-four".

Divisors: 1 2 43987 87974