47474779 has 8 divisors (see below), whose sum is σ = 51842880. Its totient is φ = 43115400.

The previous prime is 47474773. The next prime is 47474797. The reversal of 47474779 is 97747474.

47474779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 47474779 - 2¹⁵ = 47442011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47474773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15432 + ... + 18250.

It is an arithmetic number, because the mean of its divisors is an integer number (6480360).

Almost surely, 2^47474779 is an apocalyptic number.

47474779 is a deficient number, since it is larger than the sum of its proper divisors (4368101).

47474779 is a wasteful number, since it uses less digits than its factorization.

47474779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4361.

The product of its digits is 1382976, while the sum is 49.

The square root of 47474779 is about 6890.1944094488. The cubic root of 47474779 is about 362.0937127017.

The spelling of 47474779 in words is "forty-seven million, four hundred seventy-four thousand, seven hundred seventy-nine".