47924215 has 4 divisors (see below), whose sum is σ = 57509064. Its totient is φ = 38339368.

The previous prime is 47924179. The next prime is 47924221. The reversal of 47924215 is 51242974.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51242974 = 2 ⋅25621487.

It is a cyclic number.

It is not a de Polignac number, because 47924215 - 2¹⁵ = 47891447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4792417 + ... + 4792426.

It is an arithmetic number, because the mean of its divisors is an integer number (14377266).

Almost surely, 2^47924215 is an apocalyptic number.

47924215 is a deficient number, since it is larger than the sum of its proper divisors (9584849).

47924215 is an equidigital number, since it uses as much as digits as its factorization.

47924215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9584848.

The product of its digits is 20160, while the sum is 34.

The square root of 47924215 is about 6922.7317584896. The cubic root of 47924215 is about 363.2327532571.

The spelling of 47924215 in words is "forty-seven million, nine hundred twenty-four thousand, two hundred fifteen".