47803809 has 8 divisors (see below), whose sum is σ = 64783552. Its totient is φ = 31346640.

The previous prime is 47803807. The next prime is 47803837. The reversal of 47803809 is 90830874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47803809 - 2¹ = 47803807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47803801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130429 + ... + 130794.

It is an arithmetic number, because the mean of its divisors is an integer number (8097944).

Almost surely, 2^47803809 is an apocalyptic number.

It is an amenable number.

47803809 is a deficient number, since it is larger than the sum of its proper divisors (16979743).

47803809 is a wasteful number, since it uses less digits than its factorization.

47803809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261287.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 47803809 is about 6914.0298668721. The cubic root of 47803809 is about 362.9282997820.

The spelling of 47803809 in words is "forty-seven million, eight hundred three thousand, eight hundred nine".