303878 has 4 divisors (see below), whose sum is σ = 455820. Its totient is φ = 151938.

The previous prime is 303871. The next prime is 303889. The reversal of 303878 is 878303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 878303 = 67 ⋅13109.

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

It is a self number, because there is not a number n which added to its sum of digits gives 303878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303871) by changing a digit.

303878 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 (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75968 + ... + 75971.

It is an arithmetic number, because the mean of its divisors is an integer number (113955).

2³⁰³⁸⁷⁸ is an apocalyptic number.

303878 is a deficient number, since it is larger than the sum of its proper divisors (151942).

303878 is a wasteful number, since it uses less digits than its factorization.

303878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151941.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 303878 is about 551.2513038533. The cubic root of 303878 is about 67.2305121737.

The spelling of 303878 in words is "three hundred three thousand, eight hundred seventy-eight".