47477880 has 64 divisors (see below), whose sum is σ = 158263200. Its totient is φ = 12660480.

The previous prime is 47477879. The next prime is 47477887. The reversal of 47477880 is 8877474.

47477880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47477887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20901 + ... + 23060.

Almost surely, 2^47477880 is an apocalyptic number.

47477880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47477880 is an abundant number, since it is smaller than the sum of its proper divisors (110785320).

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

47477880 is a wasteful number, since it uses less digits than its factorization.

47477880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43981 (or 43971 counting only the distinct ones).

The product of its (nonzero) digits is 351232, while the sum is 45.

The square root of 47477880 is about 6890.4194357093. The cubic root of 47477880 is about 362.1015963835.

The spelling of 47477880 in words is "forty-seven million, four hundred seventy-seven thousand, eight hundred eighty".