47215 has 16 divisors (see below), whose sum is σ = 69120. Its totient is φ = 30240.

The previous prime is 47207. The next prime is 47221. The reversal of 47215 is 51274.

47215 = 15² + 16² + ... + 52².

47215 is nontrivially palindromic in base 11.

It is not a de Polignac number, because 47215 - 2³ = 47207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 47192 and 47201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 630 + ... + 700.

It is an arithmetic number, because the mean of its divisors is an integer number (4320).

2⁴⁷²¹⁵ is an apocalyptic number.

47215 is a deficient number, since it is larger than the sum of its proper divisors (21905).

47215 is a wasteful number, since it uses less digits than its factorization.

47215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102.

The product of its digits is 280, while the sum is 19.

The square root of 47215 is about 217.2901286299. The cubic root of 47215 is about 36.1432053048.

47215 divided by its sum of digits (19) gives a triangular number (2485 = T₇₀).

Adding to 47215 its reverse (51274), we get a palindrome (98489).

It can be divided in two parts, 47 and 215, that added together give a palindrome (262).

The spelling of 47215 in words is "forty-seven thousand, two hundred fifteen".