47311488 has 96 divisors (see below), whose sum is σ = 155619360. Its totient is φ = 13515264.

The previous prime is 47311477. The next prime is 47311507. The reversal of 47311488 is 88411374.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5131 + ... + 10997.

It is an arithmetic number, because the mean of its divisors is an integer number (1621035).

Almost surely, 2^47311488 is an apocalyptic number.

47311488 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47311488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77809680).

47311488 is an abundant number, since it is smaller than the sum of its proper divisors (108307872).

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

47311488 is a wasteful number, since it uses less digits than its factorization.

47311488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5894 (or 5879 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 47311488 is about 6878.3346821742. The cubic root of 47311488 is about 361.6780915737.

The spelling of 47311488 in words is "forty-seven million, three hundred eleven thousand, four hundred eighty-eight".