4821215 has 16 divisors (see below), whose sum is σ = 6666240. Its totient is φ = 3278880.

The previous prime is 4821209. The next prime is 4821239. The reversal of 4821215 is 5121284.

It is not a de Polignac number, because 4821215 - 2⁴ = 4821199 is a prime.

It is a super-2 number, since 2×4821215² = 46488228152450, which contains 22 as substring.

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, 4370 + ... + 5360.

It is an arithmetic number, because the mean of its divisors is an integer number (416640).

Almost surely, 2^4821215 is an apocalyptic number.

4821215 is a deficient number, since it is larger than the sum of its proper divisors (1845025).

4821215 is a wasteful number, since it uses less digits than its factorization.

4821215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142.

The product of its digits is 640, while the sum is 23.

The square root of 4821215 is about 2195.7265312420. The cubic root of 4821215 is about 168.9346875992.

Adding to 4821215 its reverse (5121284), we get a palindrome (9942499).

The spelling of 4821215 in words is "four million, eight hundred twenty-one thousand, two hundred fifteen".