10635621 has 4 divisors (see below), whose sum is σ = 14180832. Its totient is φ = 7090412.

The previous prime is 10635619. The next prime is 10635661. The reversal of 10635621 is 12653601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10635621 - 2¹ = 10635619 is a prime.

It is a super-2 number, since 2×10635621² = 226232868111282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10635591 and 10635600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10635661) 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, 1772601 + ... + 1772606.

It is an arithmetic number, because the mean of its divisors is an integer number (3545208).

Almost surely, 2^10635621 is an apocalyptic number.

It is an amenable number.

10635621 is a deficient number, since it is larger than the sum of its proper divisors (3545211).

10635621 is an equidigital number, since it uses as much as digits as its factorization.

10635621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3545210.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 10635621 is about 3261.2299826906. The cubic root of 10635621 is about 219.9147121196.

The spelling of 10635621 in words is "ten million, six hundred thirty-five thousand, six hundred twenty-one".