3630813 has 8 divisors (see below), whose sum is σ = 4997376. Its totient is φ = 2342400.

The previous prime is 3630793. The next prime is 3630817. The reversal of 3630813 is 3180363.

3630813 is nontrivially palindromic in base 9.

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

It is not a de Polignac number, because 3630813 - 2⁶ = 3630749 is a prime.

It is a super-3 number, since 3×3630813³ (a number of 21 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3630817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19428 + ... + 19613.

It is an arithmetic number, because the mean of its divisors is an integer number (624672).

Almost surely, 2^3630813 is an apocalyptic number.

It is an amenable number.

3630813 is a deficient number, since it is larger than the sum of its proper divisors (1366563).

3630813 is a wasteful number, since it uses less digits than its factorization.

3630813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39075.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 3630813 is about 1905.4692335485. The cubic root of 3630813 is about 153.6979095135.

The spelling of 3630813 in words is "three million, six hundred thirty thousand, eight hundred thirteen".