10509646 has 16 divisors (see below), whose sum is σ = 18101376. Its totient is φ = 4482936.

The previous prime is 10509619. The next prime is 10509649. The reversal of 10509646 is 64690501.

It is a super-2 number, since 2×10509646² = 220905318090632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10509649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1525 + ... + 4831.

It is an arithmetic number, because the mean of its divisors is an integer number (1131336).

Almost surely, 2^10509646 is an apocalyptic number.

10509646 is a deficient number, since it is larger than the sum of its proper divisors (7591730).

10509646 is a wasteful number, since it uses less digits than its factorization.

10509646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3543.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 10509646 is about 3241.8584176364. The cubic root of 10509646 is about 219.0429917752.

The spelling of 10509646 in words is "ten million, five hundred nine thousand, six hundred forty-six".