47491584 has 120 divisors (see below), whose sum is σ = 147410208. Its totient is φ = 13547520.

The previous prime is 47491567. The next prime is 47491601. The reversal of 47491584 is 48519474.

It is an interprime number because it is at equal distance from previous prime (47491567) and next prime (47491601).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74949 + ... + 75579.

Almost surely, 2^47491584 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 47491584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73705104).

47491584 is an abundant number, since it is smaller than the sum of its proper divisors (99918624).

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

47491584 is an equidigital number, since it uses as much as digits as its factorization.

47491584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 643 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 47491584 is about 6891.4137881860. The cubic root of 47491584 is about 362.1364319948.

The spelling of 47491584 in words is "forty-seven million, four hundred ninety-one thousand, five hundred eighty-four".