47231808 has 112 divisors (see below), whose sum is σ = 136550400. Its totient is φ = 14321664.

The previous prime is 47231791. The next prime is 47231819. The reversal of 47231808 is 80813274.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316918 + ... + 317066.

It is an arithmetic number, because the mean of its divisors is an integer number (1219200).

Almost surely, 2^47231808 is an apocalyptic number.

47231808 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 47231808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68275200).

47231808 is an abundant number, since it is smaller than the sum of its proper divisors (89318592).

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

47231808 is a wasteful number, since it uses less digits than its factorization.

47231808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 47231808 is about 6872.5401417525. The cubic root of 47231808 is about 361.4749365191.

The spelling of 47231808 in words is "forty-seven million, two hundred thirty-one thousand, eight hundred eight".