878923490 has 8 divisors (see below), whose sum is σ = 1582062300. Its totient is φ = 351569392.

The previous prime is 878923481. The next prime is 878923543. The reversal of 878923490 is 94329878.

It is a happy number.

878923490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 860424889 + 18498601 = 29333^2 + 4301^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43946165 + ... + 43946184.

Almost surely, 2^878923490 is an apocalyptic number.

878923490 is a deficient number, since it is larger than the sum of its proper divisors (703138810).

878923490 is a wasteful number, since it uses less digits than its factorization.

878923490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87892356.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 878923490 is about 29646.6438235427. The cubic root of 878923490 is about 957.8930535264.

The spelling of 878923490 in words is "eight hundred seventy-eight million, nine hundred twenty-three thousand, four hundred ninety".