47783146 has 8 divisors (see below), whose sum is σ = 71731044. Its totient is φ = 23872800.

The previous prime is 47783143. The next prime is 47783147. The reversal of 47783146 is 64138774.

It can be written as a sum of positive squares in 2 ways, for example, as 41100921 + 6682225 = 6411^2 + 2585^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 47783099 and 47783108.

It is not an unprimeable number, because it can be changed into a prime (47783143) 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, 5955 + ... + 11446.

Almost surely, 2^47783146 is an apocalyptic number.

47783146 is a deficient number, since it is larger than the sum of its proper divisors (23947898).

47783146 is a wasteful number, since it uses less digits than its factorization.

47783146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18776.

The product of its digits is 112896, while the sum is 40.

The square root of 47783146 is about 6912.5354248640. The cubic root of 47783146 is about 362.8760008238.

The spelling of 47783146 in words is "forty-seven million, seven hundred eighty-three thousand, one hundred forty-six".