878047876 has 6 divisors (see below), whose sum is σ = 1536583790. Its totient is φ = 439023936.

The previous prime is 878047861. The next prime is 878047879. The reversal of 878047876 is 678740878.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 876160000 + 1887876 = 29600^2 + 1374^2 .

It is a super-2 number, since 2×878047876² = 1541936145096222752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (878047879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109755981 + ... + 109755988.

Almost surely, 2^878047876 is an apocalyptic number.

It is an amenable number.

878047876 is a deficient number, since it is larger than the sum of its proper divisors (658535914).

878047876 is a wasteful number, since it uses less digits than its factorization.

878047876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219511973 (or 219511971 counting only the distinct ones).

The product of its (nonzero) digits is 4214784, while the sum is 55.

The square root of 878047876 is about 29631.8726374153. The cubic root of 878047876 is about 957.5748524312.

The spelling of 878047876 in words is "eight hundred seventy-eight million, forty-seven thousand, eight hundred seventy-six".