47148479 has 4 divisors (see below), whose sum is σ = 53883984. Its totient is φ = 40412976.

The previous prime is 47148467. The next prime is 47148487. The reversal of 47148479 is 97484174.

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 47148479 - 2¹⁶ = 47082943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47148979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3367742 + ... + 3367755.

It is an arithmetic number, because the mean of its divisors is an integer number (13470996).

Almost surely, 2^47148479 is an apocalyptic number.

47148479 is a deficient number, since it is larger than the sum of its proper divisors (6735505).

47148479 is an equidigital number, since it uses as much as digits as its factorization.

47148479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6735504.

The product of its digits is 225792, while the sum is 44.

The square root of 47148479 is about 6866.4750054158. The cubic root of 47148479 is about 361.2622332755.

The spelling of 47148479 in words is "forty-seven million, one hundred forty-eight thousand, four hundred seventy-nine".