47783145 has 8 divisors (see below), whose sum is σ = 76453056. Its totient is φ = 25484336.

The previous prime is 47783143. The next prime is 47783147. The reversal of 47783145 is 54138774.

It is an interprime number because it is at equal distance from previous prime (47783143) and next prime (47783147).

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 47783145 - 2¹ = 47783143 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 1592757 + ... + 1592786.

It is an arithmetic number, because the mean of its divisors is an integer number (9556632).

Almost surely, 2^47783145 is an apocalyptic number.

It is an amenable number.

47783145 is a deficient number, since it is larger than the sum of its proper divisors (28669911).

47783145 is a wasteful number, since it uses less digits than its factorization.

47783145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3185551.

The product of its digits is 94080, while the sum is 39.

The square root of 47783145 is about 6912.5353525317. The cubic root of 47783145 is about 362.8759982924.

The spelling of 47783145 in words is "forty-seven million, seven hundred eighty-three thousand, one hundred forty-five".