945878 has 4 divisors (see below), whose sum is σ = 1418820. Its totient is φ = 472938.

The previous prime is 945851. The next prime is 945881. The reversal of 945878 is 878549.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 878549 = 7 ⋅125507.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 945878.

It is an unprimeable number.

945878 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 (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236468 + ... + 236471.

It is an arithmetic number, because the mean of its divisors is an integer number (354705).

2⁹⁴⁵⁸⁷⁸ is an apocalyptic number.

945878 is a deficient number, since it is larger than the sum of its proper divisors (472942).

945878 is a wasteful number, since it uses less digits than its factorization.

945878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472941.

The product of its digits is 80640, while the sum is 41.

The square root of 945878 is about 972.5625943866. The cubic root of 945878 is about 98.1623713927.

The spelling of 945878 in words is "nine hundred forty-five thousand, eight hundred seventy-eight".