10643355 has 12 divisors (see below), whose sum is σ = 18448560. Its totient is φ = 5676432.

The previous prime is 10643351. The next prime is 10643359. The reversal of 10643355 is 55334601.

10643355 is a `hidden beast` number, since 10 + 643 + 3 + 5 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (10643351) and next prime (10643359).

It is not a de Polignac number, because 10643355 - 2² = 10643351 is a prime.

It is a super-2 number, since 2×10643355² = 226562011312050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10643351) 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 11 ways as a sum of consecutive naturals, for example, 118215 + ... + 118304.

It is an arithmetic number, because the mean of its divisors is an integer number (1537380).

Almost surely, 2^10643355 is an apocalyptic number.

10643355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10643355 is a deficient number, since it is larger than the sum of its proper divisors (7805205).

10643355 is a wasteful number, since it uses less digits than its factorization.

10643355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236530 (or 236527 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 10643355 is about 3262.4155161475. The cubic root of 10643355 is about 219.9680049890.

Adding to 10643355 its reverse (55334601), we get a palindrome (65977956).

The spelling of 10643355 in words is "ten million, six hundred forty-three thousand, three hundred fifty-five".