87774 has 8 divisors (see below), whose sum is σ = 175560. Its totient is φ = 29256.

The previous prime is 87767. The next prime is 87793. The reversal of 87774 is 47778.

It is a sphenic number, since it is the product of 3 distinct primes.

87774 is an admirable number.

It is a plaindrome in base 16.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7309 + ... + 7320.

It is an arithmetic number, because the mean of its divisors is an integer number (21945).

2⁸⁷⁷⁷⁴ is an apocalyptic number.

87774 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87780).

87774 is a wasteful number, since it uses less digits than its factorization.

87774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14634.

The product of its digits is 10976, while the sum is 33.

The square root of 87774 is about 296.2667716771. The cubic root of 87774 is about 44.4414919335.

It can be divided in two parts, 87 and 774, that added together give a triangular number (861 = T₄₁).

The spelling of 87774 in words is "eighty-seven thousand, seven hundred seventy-four".