47117490 has 64 divisors (see below), whose sum is σ = 130740480. Its totient is φ = 10644480.

The previous prime is 47117471. The next prime is 47117491. The reversal of 47117490 is 9471174.

It is not an unprimeable number, because it can be changed into a prime (47117491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17430 + ... + 19950.

It is an arithmetic number, because the mean of its divisors is an integer number (2042820).

Almost surely, 2^47117490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47117490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65370240).

47117490 is an abundant number, since it is smaller than the sum of its proper divisors (83622990).

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

47117490 is a wasteful number, since it uses less digits than its factorization.

47117490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 47117490 is about 6864.2180909409. The cubic root of 47117490 is about 361.1830677032.

The spelling of 47117490 in words is "forty-seven million, one hundred seventeen thousand, four hundred ninety".