162878 has 4 divisors (see below), whose sum is σ = 244320. Its totient is φ = 81438.

The previous prime is 162859. The next prime is 162881. The reversal of 162878 is 878261.

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

It is a congruent number.

It is an unprimeable number.

162878 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 as a sum of consecutive naturals, namely, 40718 + ... + 40721.

It is an arithmetic number, because the mean of its divisors is an integer number (61080).

2¹⁶²⁸⁷⁸ is an apocalyptic number.

162878 is a deficient number, since it is larger than the sum of its proper divisors (81442).

162878 is an equidigital number, since it uses as much as digits as its factorization.

162878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81441.

The product of its digits is 5376, while the sum is 32.

The square root of 162878 is about 403.5814663733. The cubic root of 162878 is about 54.6119238495.

The spelling of 162878 in words is "one hundred sixty-two thousand, eight hundred seventy-eight".