10509849 has 12 divisors (see below), whose sum is σ = 17349696. Its totient is φ = 6005592.

The previous prime is 10509841. The next prime is 10509871. The reversal of 10509849 is 94890501.

It is not a de Polignac number, because 10509849 - 2³ = 10509841 is a prime.

It is a super-2 number, since 2×10509849² = 220913852005602, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10509841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83349 + ... + 83474.

It is an arithmetic number, because the mean of its divisors is an integer number (1445808).

Almost surely, 2^10509849 is an apocalyptic number.

It is an amenable number.

10509849 is a deficient number, since it is larger than the sum of its proper divisors (6839847).

10509849 is a wasteful number, since it uses less digits than its factorization.

10509849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166836 (or 166833 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 10509849 is about 3241.8897266872. The cubic root of 10509849 is about 219.0444020809.

The spelling of 10509849 in words is "ten million, five hundred nine thousand, eight hundred forty-nine".