10643385 has 32 divisors (see below), whose sum is σ = 17989632. Its totient is φ = 5365440.

The previous prime is 10643359. The next prime is 10643389. The reversal of 10643385 is 58334601.

It is not a de Polignac number, because 10643385 - 2⁷ = 10643257 is a prime.

It is a super-2 number, since 2×10643385² = 226563288516450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10643389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21612 + ... + 22098.

It is an arithmetic number, because the mean of its divisors is an integer number (562176).

Almost surely, 2^10643385 is an apocalyptic number.

10643385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10643385 is a deficient number, since it is larger than the sum of its proper divisors (7346247).

10643385 is a wasteful number, since it uses less digits than its factorization.

10643385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 10643385 is about 3262.4201139645. The cubic root of 10643385 is about 219.9682116605.

Adding to 10643385 its reverse (58334601), we get a palindrome (68977986).

The spelling of 10643385 in words is "ten million, six hundred forty-three thousand, three hundred eighty-five".