47193888 has 48 divisors (see below), whose sum is σ = 141583680. Its totient is φ = 13483776.

The previous prime is 47193877. The next prime is 47193893. The reversal of 47193888 is 88839174.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 34443 + ... + 35786.

It is an arithmetic number, because the mean of its divisors is an integer number (2949660).

Almost surely, 2^47193888 is an apocalyptic number.

47193888 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

47193888 is an abundant number, since it is smaller than the sum of its proper divisors (94389792).

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

47193888 is a wasteful number, since it uses less digits than its factorization.

47193888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70249 (or 70241 counting only the distinct ones).

The product of its digits is 387072, while the sum is 48.

The square root of 47193888 is about 6869.7807825287. The cubic root of 47193888 is about 361.3781740472.

The spelling of 47193888 in words is "forty-seven million, one hundred ninety-three thousand, eight hundred eighty-eight".