47878015 has 8 divisors (see below), whose sum is σ = 57491280. Its totient is φ = 38277312.

The previous prime is 47878009. The next prime is 47878031. The reversal of 47878015 is 51087874.

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

It is a cyclic number.

It is not a de Polignac number, because 47878015 - 2⁵ = 47877983 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, 11256 + ... + 14914.

It is an arithmetic number, because the mean of its divisors is an integer number (7186410).

Almost surely, 2^47878015 is an apocalyptic number.

47878015 is a deficient number, since it is larger than the sum of its proper divisors (9613265).

47878015 is a wasteful number, since it uses less digits than its factorization.

47878015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6281.

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 47878015 is about 6919.3941208750. The cubic root of 47878015 is about 363.1159942685.

The spelling of 47878015 in words is "forty-seven million, eight hundred seventy-eight thousand, fifteen".