87734 has 4 divisors (see below), whose sum is σ = 131604. Its totient is φ = 43866.

The previous prime is 87721. The next prime is 87739. The reversal of 87734 is 43778.

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

It is a junction number, because it is equal to n+sod(n) for n = 87697 and 87706.

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 87734.

It is not an unprimeable number, because it can be changed into a prime (87739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21932 + ... + 21935.

It is an arithmetic number, because the mean of its divisors is an integer number (32901).

2⁸⁷⁷³⁴ is an apocalyptic number.

87734 is a deficient number, since it is larger than the sum of its proper divisors (43870).

87734 is a wasteful number, since it uses less digits than its factorization.

87734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43869.

The product of its digits is 4704, while the sum is 29.

The square root of 87734 is about 296.1992572577. The cubic root of 87734 is about 44.4347400108.

Subtracting from 87734 its reverse (43778), we obtain a triangular number (43956 = T₂₉₆).

The spelling of 87734 in words is "eighty-seven thousand, seven hundred thirty-four".