942878 has 4 divisors (see below), whose sum is σ = 1414320. Its totient is φ = 471438.

The previous prime is 942869. The next prime is 942883. The reversal of 942878 is 878249.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 878249 = 251 ⋅3499.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

942878 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, 235718 + ... + 235721.

It is an arithmetic number, because the mean of its divisors is an integer number (353580).

2⁹⁴²⁸⁷⁸ is an apocalyptic number.

942878 is a deficient number, since it is larger than the sum of its proper divisors (471442).

942878 is a wasteful number, since it uses less digits than its factorization.

942878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471441.

The product of its digits is 32256, while the sum is 38.

The square root of 942878 is about 971.0190523363. The cubic root of 942878 is about 98.0584823776.

The spelling of 942878 in words is "nine hundred forty-two thousand, eight hundred seventy-eight".