47071880 has 16 divisors (see below), whose sum is σ = 105911820. Its totient is φ = 18828736.

The previous prime is 47071859. The next prime is 47071883. The reversal of 47071880 is 8817074.

It can be written as a sum of positive squares in 2 ways, for example, as 46485124 + 586756 = 6818^2 + 766^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47071880.

It is not an unprimeable number, because it can be changed into a prime (47071883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588359 + ... + 588438.

Almost surely, 2^47071880 is an apocalyptic number.

47071880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47071880 is an abundant number, since it is smaller than the sum of its proper divisors (58839940).

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

47071880 is a wasteful number, since it uses less digits than its factorization.

47071880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176808 (or 1176804 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 47071880 is about 6860.8949853499. The cubic root of 47071880 is about 361.0664876528.

The spelling of 47071880 in words is "forty-seven million, seventy-one thousand, eight hundred eighty".