47671540 has 48 divisors (see below), whose sum is σ = 117516672. Its totient is φ = 15901056.

The previous prime is 47671537. The next prime is 47671541. The reversal of 47671540 is 4517674.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 47671496 and 47671505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47671541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 579 + ... + 9781.

It is an arithmetic number, because the mean of its divisors is an integer number (2448264).

Almost surely, 2^47671540 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 47671540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58758336).

47671540 is an abundant number, since it is smaller than the sum of its proper divisors (69845132).

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

47671540 is a wasteful number, since it uses less digits than its factorization.

47671540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9256 (or 9254 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 47671540 is about 6904.4579801748. The cubic root of 47671540 is about 362.5932601904.

The spelling of 47671540 in words is "forty-seven million, six hundred seventy-one thousand, five hundred forty".