878134904 has 8 divisors (see below), whose sum is σ = 1646502960. Its totient is φ = 439067448.

The previous prime is 878134903. The next prime is 878134919. The reversal of 878134904 is 409431878.

878134904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×878134904² = 1542241819246178432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878134903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54883424 + ... + 54883439.

It is an arithmetic number, because the mean of its divisors is an integer number (205812870).

Almost surely, 2^878134904 is an apocalyptic number.

It is an amenable number.

878134904 is a deficient number, since it is larger than the sum of its proper divisors (768368056).

878134904 is a wasteful number, since it uses less digits than its factorization.

878134904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109766869 (or 109766865 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 878134904 is about 29633.3410873631. The cubic root of 878134904 is about 957.6064881667.

The spelling of 878134904 in words is "eight hundred seventy-eight million, one hundred thirty-four thousand, nine hundred four".