78870885 has 8 divisors (see below), whose sum is σ = 126193440. Its totient is φ = 42064464.

The previous prime is 78870853. The next prime is 78870893. The reversal of 78870885 is 58807887.

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 78870885 - 2⁵ = 78870853 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2629015 + ... + 2629044.

It is an arithmetic number, because the mean of its divisors is an integer number (15774180).

Almost surely, 2^78870885 is an apocalyptic number.

It is an amenable number.

78870885 is a deficient number, since it is larger than the sum of its proper divisors (47322555).

78870885 is a wasteful number, since it uses less digits than its factorization.

78870885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5258067.

The product of its (nonzero) digits is 1003520, while the sum is 51.

The square root of 78870885 is about 8880.9281609525. The cubic root of 78870885 is about 428.8501549576.

The spelling of 78870885 in words is "seventy-eight million, eight hundred seventy thousand, eight hundred eighty-five".