47401878 has 16 divisors (see below), whose sum is σ = 95079600. Its totient is φ = 15754656.

The previous prime is 47401877. The next prime is 47401891. The reversal of 47401878 is 87810474.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47401877) 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, 9225 + ... + 13412.

It is an arithmetic number, because the mean of its divisors is an integer number (5942475).

Almost surely, 2^47401878 is an apocalyptic number.

47401878 is an abundant number, since it is smaller than the sum of its proper divisors (47677722).

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

47401878 is a wasteful number, since it uses less digits than its factorization.

47401878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22991.

The product of its (nonzero) digits is 50176, while the sum is 39.

The square root of 47401878 is about 6884.9021779543. The cubic root of 47401878 is about 361.9082772814.

The spelling of 47401878 in words is "forty-seven million, four hundred one thousand, eight hundred seventy-eight".