878393628 has 54 divisors (see below), whose sum is σ = 2538941496. Its totient is φ = 250835184.

The previous prime is 878393627. The next prime is 878393629. The reversal of 878393628 is 826393878.

878393628 is a `hidden beast` number, since 8 + 7 + 8 + 3 + 9 + 3 + 628 = 666.

878393628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (878393627) and next prime (878393629).

It is a super-2 number, since 2×878393628² = 1543150731422004768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878393623) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 469551 + ... + 471417.

Almost surely, 2^878393628 is an apocalyptic number.

It is an amenable number.

878393628 is an abundant number, since it is smaller than the sum of its proper divisors (1660547868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

878393628 is a wasteful number, since it uses less digits than its factorization.

878393628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3751 (or 1879 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 878393628 is about 29637.7061865455. The cubic root of 878393628 is about 957.7005251429.

The spelling of 878393628 in words is "eight hundred seventy-eight million, three hundred ninety-three thousand, six hundred twenty-eight".