878318428 has 24 divisors (see below), whose sum is σ = 1664455520. Its totient is φ = 403133760.

The previous prime is 878318401. The next prime is 878318429. The reversal of 878318428 is 824813878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878318429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37248 + ... + 56071.

Almost surely, 2^878318428 is an apocalyptic number.

It is an amenable number.

878318428 is a deficient number, since it is larger than the sum of its proper divisors (786137092).

878318428 is a wasteful number, since it uses less digits than its factorization.

878318428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93517 (or 93515 counting only the distinct ones).

The product of its digits is 688128, while the sum is 49.

The square root of 878318428 is about 29636.4375052063. The cubic root of 878318428 is about 957.6731945200.

The spelling of 878318428 in words is "eight hundred seventy-eight million, three hundred eighteen thousand, four hundred twenty-eight".