878012013 has 8 divisors (see below), whose sum is σ = 1171833376. Its totient is φ = 584766000.

The previous prime is 878012011. The next prime is 878012017. The reversal of 878012013 is 310210878.

It is a happy number.

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

It is not a de Polignac number, because 878012013 - 2¹ = 878012011 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878012011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140263 + ... + 146388.

It is an arithmetic number, because the mean of its divisors is an integer number (146479172).

Almost surely, 2^878012013 is an apocalyptic number.

It is an amenable number.

878012013 is a deficient number, since it is larger than the sum of its proper divisors (293821363).

878012013 is a wasteful number, since it uses less digits than its factorization.

878012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287675.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 878012013 is about 29631.2674889212. The cubic root of 878012013 is about 957.5618151867.

The spelling of 878012013 in words is "eight hundred seventy-eight million, twelve thousand, thirteen".