10509885 has 32 divisors (see below), whose sum is σ = 18862080. Its totient is φ = 5552064.

The previous prime is 10509871. The next prime is 10509901. The reversal of 10509885 is 58890501.

10509885 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10509885 - 2¹³ = 10501693 is a prime.

It is a super-2 number, since 2×10509885² = 220915365426450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16839 + ... + 17451.

It is an arithmetic number, because the mean of its divisors is an integer number (589440).

Almost surely, 2^10509885 is an apocalyptic number.

10509885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10509885 is a deficient number, since it is larger than the sum of its proper divisors (8352195).

10509885 is a wasteful number, since it uses less digits than its factorization.

10509885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 748 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 10509885 is about 3241.8952789996. The cubic root of 10509885 is about 219.0446521825.

The spelling of 10509885 in words is "ten million, five hundred nine thousand, eight hundred eighty-five".