47561893 has 4 divisors (see below), whose sum is σ = 48271840. Its totient is φ = 46851948.

The previous prime is 47561887. The next prime is 47561897. The reversal of 47561893 is 39816574.

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 a de Polignac number, because none of the positive numbers 2^k-47561893 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 (47561897) 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, 354873 + ... + 355006.

It is an arithmetic number, because the mean of its divisors is an integer number (12067960).

Almost surely, 2^47561893 is an apocalyptic number.

It is an amenable number.

47561893 is a deficient number, since it is larger than the sum of its proper divisors (709947).

47561893 is an equidigital number, since it uses as much as digits as its factorization.

47561893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709946.

The product of its digits is 181440, while the sum is 43.

The square root of 47561893 is about 6896.5131044608. The cubic root of 47561893 is about 362.3150523858.

The spelling of 47561893 in words is "forty-seven million, five hundred sixty-one thousand, eight hundred ninety-three".