47878366 has 16 divisors (see below), whose sum is σ = 75836160. Its totient is φ = 22607640.

The previous prime is 47878357. The next prime is 47878373. The reversal of 47878366 is 66387874.

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, 11371 + ... + 15001.

It is an arithmetic number, because the mean of its divisors is an integer number (4739760).

Almost surely, 2^47878366 is an apocalyptic number.

47878366 is a deficient number, since it is larger than the sum of its proper divisors (27957794).

47878366 is a wasteful number, since it uses less digits than its factorization.

47878366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3999.

The product of its digits is 1354752, while the sum is 49.

The square root of 47878366 is about 6919.4194843209. The cubic root of 47878366 is about 363.1168816167.

The spelling of 47878366 in words is "forty-seven million, eight hundred seventy-eight thousand, three hundred sixty-six".