47783455 has 4 divisors (see below), whose sum is σ = 57340152. Its totient is φ = 38226760.

The previous prime is 47783453. The next prime is 47783459. The reversal of 47783455 is 55438774.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55438774 = 2 ⋅27719387.

It is not a de Polignac number, because 47783455 - 2¹ = 47783453 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 (47783453) 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, 4778341 + ... + 4778350.

It is an arithmetic number, because the mean of its divisors is an integer number (14335038).

Almost surely, 2^47783455 is an apocalyptic number.

47783455 is a deficient number, since it is larger than the sum of its proper divisors (9556697).

47783455 is an equidigital number, since it uses as much as digits as its factorization.

47783455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9556696.

The product of its digits is 470400, while the sum is 43.

The square root of 47783455 is about 6912.5577755271. The cubic root of 47783455 is about 362.8767830274.

The spelling of 47783455 in words is "forty-seven million, seven hundred eighty-three thousand, four hundred fifty-five".