87878 has 8 divisors (see below), whose sum is σ = 150672. Its totient is φ = 37656.

The previous prime is 87877. The next prime is 87881.

87878 is nontrivially palindromic in base 10.

87878 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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

It is an alternating number because its digits alternate between even and odd.

87878 is an undulating number in base 10.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87877) 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, 3125 + ... + 3152.

It is an arithmetic number, because the mean of its divisors is an integer number (18834).

2⁸⁷⁸⁷⁸ is an apocalyptic number.

87878 is a deficient number, since it is larger than the sum of its proper divisors (62794).

87878 is a wasteful number, since it uses less digits than its factorization.

87878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6286.

The product of its digits is 25088, while the sum is 38.

The square root of 87878 is about 296.4422372065. The cubic root of 87878 is about 44.4590373377.

The spelling of 87878 in words is "eighty-seven thousand, eight hundred seventy-eight".