47632813 has 4 divisors (see below), whose sum is σ = 48235840. Its totient is φ = 47029788.

The previous prime is 47632807. The next prime is 47632841. The reversal of 47632813 is 31823674.

It is a happy number.

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 47632813 - 2⁹ = 47632301 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 (47632853) 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, 301395 + ... + 301552.

It is an arithmetic number, because the mean of its divisors is an integer number (12058960).

Almost surely, 2^47632813 is an apocalyptic number.

It is an amenable number.

47632813 is a deficient number, since it is larger than the sum of its proper divisors (603027).

47632813 is an equidigital number, since it uses as much as digits as its factorization.

47632813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603026.

The product of its digits is 24192, while the sum is 34.

The square root of 47632813 is about 6901.6529179610. The cubic root of 47632813 is about 362.4950467813.

The spelling of 47632813 in words is "forty-seven million, six hundred thirty-two thousand, eight hundred thirteen".