4636845 has 30 divisors (see below), whose sum is σ = 8390382. Its totient is φ = 2449872.

The previous prime is 4636837. The next prime is 4636847. The reversal of 4636845 is 5486364.

It can be written as a sum of positive squares in only one way, i.e., 3709476 + 927369 = 1926^2 + 963^2 .

It is not a de Polignac number, because 4636845 - 2³ = 4636837 is a prime.

4636845 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4636847) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 43282 + ... + 43388.

Almost surely, 2^4636845 is an apocalyptic number.

4636845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4636845 is a deficient number, since it is larger than the sum of its proper divisors (3753537).

4636845 is an equidigital number, since it uses as much as digits as its factorization.

4636845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 115 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 4636845 is about 2153.3334623323. Note that the first 3 decimals coincide. The cubic root of 4636845 is about 166.7532061688.

The spelling of 4636845 in words is "four million, six hundred thirty-six thousand, eight hundred forty-five".