10509636 has 12 divisors (see below), whose sum is σ = 24522512. Its totient is φ = 3503208.

The previous prime is 10509619. The next prime is 10509649. The reversal of 10509636 is 63690501.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×10509636² = 220904897704992, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437890 + ... + 437913.

Almost surely, 2^10509636 is an apocalyptic number.

It is an amenable number.

10509636 is an abundant number, since it is smaller than the sum of its proper divisors (14012876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10509636 is a wasteful number, since it uses less digits than its factorization.

10509636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875810 (or 875808 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 10509636 is about 3241.8568753108. The cubic root of 10509636 is about 219.0429223016.

The spelling of 10509636 in words is "ten million, five hundred nine thousand, six hundred thirty-six".