3630623 has 4 divisors (see below), whose sum is σ = 3634848. Its totient is φ = 3626400.

The previous prime is 3630611. The next prime is 3630629. The reversal of 3630623 is 3260363.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3260363 = 31 ⋅105173.

It is a cyclic number.

It is not a de Polignac number, because 3630623 - 2⁶ = 3630559 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3630629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311 + ... + 2712.

It is an arithmetic number, because the mean of its divisors is an integer number (908712).

Almost surely, 2^3630623 is an apocalyptic number.

3630623 is a deficient number, since it is larger than the sum of its proper divisors (4225).

3630623 is a wasteful number, since it uses less digits than its factorization.

3630623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4224.

The product of its (nonzero) digits is 1944, while the sum is 23.

The square root of 3630623 is about 1905.4193764103. The cubic root of 3630623 is about 153.6952284691.

Adding to 3630623 its reverse (3260363), we get a palindrome (6890986).

The spelling of 3630623 in words is "three million, six hundred thirty thousand, six hundred twenty-three".