67870 has 16 divisors (see below), whose sum is σ = 133488. Its totient is φ = 24640.

The previous prime is 67867. The next prime is 67883. The reversal of 67870 is 7876.

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

It is a plaindrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199 + ... + 418.

It is an arithmetic number, because the mean of its divisors is an integer number (8343).

2⁶⁷⁸⁷⁰ is an apocalyptic number.

67870 is a deficient number, since it is larger than the sum of its proper divisors (65618).

67870 is a wasteful number, since it uses less digits than its factorization.

67870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 67870 is about 260.5187133394. The cubic root of 67870 is about 40.7905238790.

The spelling of 67870 in words is "sixty-seven thousand, eight hundred seventy".