4855815 has 16 divisors (see below), whose sum is σ = 8632800. Its totient is φ = 2589696.

The previous prime is 4855813. The next prime is 4855817. The reversal of 4855815 is 5185584.

It is an interprime number because it is at equal distance from previous prime (4855813) and next prime (4855817).

It is not a de Polignac number, because 4855815 - 2¹ = 4855813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4855815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4855813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17850 + ... + 18119.

It is an arithmetic number, because the mean of its divisors is an integer number (539550).

Almost surely, 2^4855815 is an apocalyptic number.

4855815 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4855815 is a deficient number, since it is larger than the sum of its proper divisors (3776985).

4855815 is a wasteful number, since it uses less digits than its factorization.

4855815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35983 (or 35977 counting only the distinct ones).

The product of its digits is 32000, while the sum is 36.

The square root of 4855815 is about 2203.5913868047. The cubic root of 4855815 is about 169.3378510413.

The spelling of 4855815 in words is "four million, eight hundred fifty-five thousand, eight hundred fifteen".