878014078 has 4 divisors (see below), whose sum is σ = 1317021120. Its totient is φ = 439007038.

The previous prime is 878014051. The next prime is 878014091. The reversal of 878014078 is 870410878.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 870410878 = 2 ⋅435205439.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219503518 + ... + 219503521.

It is an arithmetic number, because the mean of its divisors is an integer number (329255280).

Almost surely, 2^878014078 is an apocalyptic number.

878014078 is a deficient number, since it is larger than the sum of its proper divisors (439007042).

878014078 is a wasteful number, since it uses less digits than its factorization.

878014078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439007041.

The product of its (nonzero) digits is 100352, while the sum is 43.

The square root of 878014078 is about 29631.3023338496. The cubic root of 878014078 is about 957.5625658840.

The spelling of 878014078 in words is "eight hundred seventy-eight million, fourteen thousand, seventy-eight".