47809441 has 4 divisors (see below), whose sum is σ = 47897392. Its totient is φ = 47721492.

The previous prime is 47809427. The next prime is 47809451. The reversal of 47809441 is 14490874.

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 47809441 - 2¹¹ = 47807393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47809441.

It is not an unprimeable number, because it can be changed into a prime (47809451) 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, 43155 + ... + 44248.

It is an arithmetic number, because the mean of its divisors is an integer number (11974348).

Almost surely, 2^47809441 is an apocalyptic number.

It is an amenable number.

47809441 is a deficient number, since it is larger than the sum of its proper divisors (87951).

47809441 is an equidigital number, since it uses as much as digits as its factorization.

47809441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87950.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 47809441 is about 6914.4371426747. The cubic root of 47809441 is about 362.9425520069.

The spelling of 47809441 in words is "forty-seven million, eight hundred nine thousand, four hundred forty-one".