47127808 has 162 divisors, whose sum is σ = 125187846. Its totient is φ = 17547264.

The previous prime is 47127797. The next prime is 47127823. The reversal of 47127808 is 80872174.

It can be written as a sum of positive squares in 3 ways, for example, as 10549504 + 36578304 = 3248^2 + 6048^2 .

It is a congruent number.

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 17 ways as a sum of consecutive naturals, for example, 2772216 + ... + 2772232.

Almost surely, 2^47127808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47127808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62593923).

47127808 is an abundant number, since it is smaller than the sum of its proper divisors (78060038).

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

47127808 is a wasteful number, since it uses less digits than its factorization.

47127808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77 (or 39 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 47127808 is about 6864.9696284834. The cubic root of 47127808 is about 361.2094302768.

The spelling of 47127808 in words is "forty-seven million, one hundred twenty-seven thousand, eight hundred eight".