47878156 has 6 divisors (see below), whose sum is σ = 83786780. Its totient is φ = 23939076.

The previous prime is 47878151. The next prime is 47878163. The reversal of 47878156 is 65187874.

It is not an unprimeable number, because it can be changed into a prime (47878151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5984766 + ... + 5984773.

Almost surely, 2^47878156 is an apocalyptic number.

It is an amenable number.

47878156 is a deficient number, since it is larger than the sum of its proper divisors (35908624).

47878156 is a wasteful number, since it uses less digits than its factorization.

47878156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11969543 (or 11969541 counting only the distinct ones).

The product of its digits is 376320, while the sum is 46.

The square root of 47878156 is about 6919.4043096209. The cubic root of 47878156 is about 363.1163507251.

The spelling of 47878156 in words is "forty-seven million, eight hundred seventy-eight thousand, one hundred fifty-six".