47878548 has 24 divisors (see below), whose sum is σ = 116574528. Its totient is φ = 15265536.

The previous prime is 47878547. The next prime is 47878549. The reversal of 47878548 is 84587874.

It is an interprime number because it is at equal distance from previous prime (47878547) and next prime (47878549).

It is a self number, because there is not a number n which added to its sum of digits gives 47878548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47878547) 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, 86461 + ... + 87012.

It is an arithmetic number, because the mean of its divisors is an integer number (4857272).

Almost surely, 2^47878548 is an apocalyptic number.

It is an amenable number.

47878548 is an abundant number, since it is smaller than the sum of its proper divisors (68695980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47878548 is a wasteful number, since it uses less digits than its factorization.

47878548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173503 (or 173501 counting only the distinct ones).

The product of its digits is 2007040, while the sum is 51.

The square root of 47878548 is about 6919.4326357007. The cubic root of 47878548 is about 363.1173417214.

The spelling of 47878548 in words is "forty-seven million, eight hundred seventy-eight thousand, five hundred forty-eight".