47624813 has 4 divisors (see below), whose sum is σ = 47824320. Its totient is φ = 47425308.

The previous prime is 47624777. The next prime is 47624839. The reversal of 47624813 is 31842674.

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 47624813 - 2⁶ = 47624749 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 (47654813) 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, 99395 + ... + 99872.

It is an arithmetic number, because the mean of its divisors is an integer number (11956080).

Almost surely, 2^47624813 is an apocalyptic number.

It is an amenable number.

47624813 is a deficient number, since it is larger than the sum of its proper divisors (199507).

47624813 is a wasteful number, since it uses less digits than its factorization.

47624813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199506.

The product of its digits is 32256, while the sum is 35.

The square root of 47624813 is about 6901.0733223173. The cubic root of 47624813 is about 362.4747517889.

The spelling of 47624813 in words is "forty-seven million, six hundred twenty-four thousand, eight hundred thirteen".