47774445 has 8 divisors (see below), whose sum is σ = 76439136. Its totient is φ = 25479696.

The previous prime is 47774431. The next prime is 47774453. The reversal of 47774445 is 54447774.

It is a happy number.

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

It is not a de Polignac number, because 47774445 - 2⁴ = 47774429 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 47774397 and 47774406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1592467 + ... + 1592496.

It is an arithmetic number, because the mean of its divisors is an integer number (9554892).

Almost surely, 2^47774445 is an apocalyptic number.

It is an amenable number.

47774445 is a deficient number, since it is larger than the sum of its proper divisors (28664691).

47774445 is a wasteful number, since it uses less digits than its factorization.

47774445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3184971.

The product of its digits is 439040, while the sum is 42.

The square root of 47774445 is about 6911.9060323474. The cubic root of 47774445 is about 362.8539737005.

The spelling of 47774445 in words is "forty-seven million, seven hundred seventy-four thousand, four hundred forty-five".