47367779 has 4 divisors (see below), whose sum is σ = 49860840. Its totient is φ = 44874720.

The previous prime is 47367773. The next prime is 47367791. The reversal of 47367779 is 97776374.

It is a happy number.

47367779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97776374 = 2 ⋅48888187.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47367779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47367773) 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 3 ways as a sum of consecutive naturals, for example, 1246502 + ... + 1246539.

It is an arithmetic number, because the mean of its divisors is an integer number (12465210).

Almost surely, 2^47367779 is an apocalyptic number.

47367779 is a deficient number, since it is larger than the sum of its proper divisors (2493061).

47367779 is a wasteful number, since it uses less digits than its factorization.

47367779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2493060.

The product of its digits is 1555848, while the sum is 50.

The square root of 47367779 is about 6882.4253719165. The cubic root of 47367779 is about 361.8214757228.

The spelling of 47367779 in words is "forty-seven million, three hundred sixty-seven thousand, seven hundred seventy-nine".