878648164 has 9 divisors (see below), whose sum is σ = 1537738041. Its totient is φ = 439294440.

The previous prime is 878648161. The next prime is 878648189. The reversal of 878648164 is 461846878.

The square root of 878648164 is 29642.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 385808164 + 492840000 = 19642^2 + 22200^2 .

It is a super-2 number, since 2×878648164² = 1544045192201141792, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (878648161) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 51874 + ... + 66694.

Almost surely, 2^878648164 is an apocalyptic number.

878648164 is the 29642-nd square number.

It is an amenable number.

878648164 is a deficient number, since it is larger than the sum of its proper divisors (659089877).

878648164 is an frugal number, since it uses more digits than its factorization.

878648164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29646 (or 14823 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 52.

The cubic root of 878648164 is about 957.7930219123.

The spelling of 878648164 in words is "eight hundred seventy-eight million, six hundred forty-eight thousand, one hundred sixty-four".