2447215 has 8 divisors (see below), whose sum is σ = 2949408. Its totient is φ = 1949280.

The previous prime is 2447209. The next prime is 2447239. The reversal of 2447215 is 5127442.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2447215 is a prime.

It is a super-2 number, since 2×2447215² = 11977722512450, which contains 22 as substring.

It is a Duffinian number.

2447215 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2447215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385 + ... + 2245.

It is an arithmetic number, because the mean of its divisors is an integer number (368676).

2^2447215 is an apocalyptic number.

2447215 is a deficient number, since it is larger than the sum of its proper divisors (502193).

2447215 is a wasteful number, since it uses less digits than its factorization.

2447215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129.

The product of its digits is 2240, while the sum is 25.

The square root of 2447215 is about 1564.3576956694. The cubic root of 2447215 is about 134.7588745628.

It can be divided in two parts, 2447 and 215, that added together give a palindrome (2662).

The spelling of 2447215 in words is "two million, four hundred forty-seven thousand, two hundred fifteen".