4861215 has 24 divisors (see below), whose sum is σ = 8740368. Its totient is φ = 2592000.

The previous prime is 4861139. The next prime is 4861217. The reversal of 4861215 is 5121684.

4861215 is a `hidden beast` number, since 48 + 612 + 1 + 5 = 666.

4861215 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4861215 - 2⁸ = 4860959 is a prime.

It is a super-2 number, since 2×4861215² = 47262822552450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

4861215 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4861217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 786 + ... + 3215.

It is an arithmetic number, because the mean of its divisors is an integer number (364182).

Almost surely, 2^4861215 is an apocalyptic number.

4861215 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4861215 is a deficient number, since it is larger than the sum of its proper divisors (3879153).

4861215 is an equidigital number, since it uses as much as digits as its factorization.

4861215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4021 (or 4009 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 4861215 is about 2204.8163188801. The cubic root of 4861215 is about 169.4005995629.

Adding to 4861215 its reverse (5121684), we get a palindrome (9982899).

The spelling of 4861215 in words is "four million, eight hundred sixty-one thousand, two hundred fifteen".