10644506 has 4 divisors (see below), whose sum is σ = 15966762. Its totient is φ = 5322252.

The previous prime is 10644451. The next prime is 10644509. The reversal of 10644506 is 60544601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5331481 + 5313025 = 2309^2 + 2305^2 .

It is a super-2 number, since 2×10644506² = 226611015968072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10644509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2661125 + ... + 2661128.

Almost surely, 2^10644506 is an apocalyptic number.

10644506 is a deficient number, since it is larger than the sum of its proper divisors (5322256).

10644506 is an equidigital number, since it uses as much as digits as its factorization.

10644506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5322255.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 10644506 is about 3262.5919144141. The cubic root of 10644506 is about 219.9759340066.

The spelling of 10644506 in words is "ten million, six hundred forty-four thousand, five hundred six".