47824081 has 4 divisors (see below), whose sum is σ = 48990564. Its totient is φ = 46657600.

The previous prime is 47824079. The next prime is 47824093. The reversal of 47824081 is 18042874.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24591681 + 23232400 = 4959^2 + 4820^2 .

It is a cyclic number.

It is not a de Polignac number, because 47824081 - 2¹ = 47824079 is a prime.

It is a super-2 number, since 2×47824081² = 4574285446989122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47824031) 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, 583180 + ... + 583261.

It is an arithmetic number, because the mean of its divisors is an integer number (12247641).

Almost surely, 2^47824081 is an apocalyptic number.

47824081 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

47824081 is a deficient number, since it is larger than the sum of its proper divisors (1166483).

47824081 is a wasteful number, since it uses less digits than its factorization.

47824081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166482.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 47824081 is about 6915.4957161436. The cubic root of 47824081 is about 362.9795944584.

The spelling of 47824081 in words is "forty-seven million, eight hundred twenty-four thousand, eighty-one".