47005813 has 8 divisors (see below), whose sum is σ = 49427136. Its totient is φ = 44616000.

The previous prime is 47005789. The next prime is 47005817. The reversal of 47005813 is 31850074.

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

It is a cyclic number.

It is not a de Polignac number, because 47005813 - 2²⁵ = 13451381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47005817) 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, 4788 + ... + 10813.

It is an arithmetic number, because the mean of its divisors is an integer number (6178392).

Almost surely, 2^47005813 is an apocalyptic number.

It is an amenable number.

47005813 is a deficient number, since it is larger than the sum of its proper divisors (2421323).

47005813 is a wasteful number, since it uses less digits than its factorization.

47005813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15755.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 47005813 is about 6856.0785438908. The cubic root of 47005813 is about 360.8974854899.

Adding to 47005813 its reverse (31850074), we get a palindrome (78855887).

The spelling of 47005813 in words is "forty-seven million, five thousand, eight hundred thirteen".