47522779 has 4 divisors (see below), whose sum is σ = 47538376. Its totient is φ = 47507184.

The previous prime is 47522777. The next prime is 47522879. The reversal of 47522779 is 97722574.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47522779 - 2¹ = 47522777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47522771) 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, 1569 + ... + 9874.

It is an arithmetic number, because the mean of its divisors is an integer number (11884594).

Almost surely, 2^47522779 is an apocalyptic number.

47522779 is a deficient number, since it is larger than the sum of its proper divisors (15597).

47522779 is a wasteful number, since it uses less digits than its factorization.

47522779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15596.

The product of its digits is 246960, while the sum is 43.

The square root of 47522779 is about 6893.6767403179. The cubic root of 47522779 is about 362.2157048013.

The spelling of 47522779 in words is "forty-seven million, five hundred twenty-two thousand, seven hundred seventy-nine".