47808481 has 4 divisors (see below), whose sum is σ = 54638272. Its totient is φ = 40978692.

The previous prime is 47808469. The next prime is 47808499. The reversal of 47808481 is 18480874.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47808481 - 2¹³ = 47800289 is a prime.

It is a super-2 number, since 2×47808481² = 4571301711054722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47808401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3414885 + ... + 3414898.

It is an arithmetic number, because the mean of its divisors is an integer number (13659568).

Almost surely, 2^47808481 is an apocalyptic number.

It is an amenable number.

47808481 is a deficient number, since it is larger than the sum of its proper divisors (6829791).

47808481 is an equidigital number, since it uses as much as digits as its factorization.

47808481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6829790.

The product of its (nonzero) digits is 57344, while the sum is 40.

The square root of 47808481 is about 6914.3677223590. The cubic root of 47808481 is about 362.9401227295.

The spelling of 47808481 in words is "forty-seven million, eight hundred eight thousand, four hundred eighty-one".