47487179 has 4 divisors (see below), whose sum is σ = 48591576. Its totient is φ = 46382784.

The previous prime is 47487173. The next prime is 47487191. The reversal of 47487179 is 97178474.

47487179 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: 97178474 = 2 ⋅48589237.

It is a cyclic number.

It is not a de Polignac number, because 47487179 - 2⁴ = 47487163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47487173) 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, 552134 + ... + 552219.

It is an arithmetic number, because the mean of its divisors is an integer number (12147894).

Almost surely, 2^47487179 is an apocalyptic number.

47487179 is a deficient number, since it is larger than the sum of its proper divisors (1104397).

47487179 is a wasteful number, since it uses less digits than its factorization.

47487179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104396.

The product of its digits is 395136, while the sum is 47.

The square root of 47487179 is about 6891.0941801720. The cubic root of 47487179 is about 362.1252352018.

The spelling of 47487179 in words is "forty-seven million, four hundred eighty-seven thousand, one hundred seventy-nine".