10638655 has 8 divisors (see below), whose sum is σ = 12941712. Its totient is φ = 8394048.

The previous prime is 10638631. The next prime is 10638697. The reversal of 10638655 is 55683601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10638655 - 2¹³ = 10630463 is a prime.

It is a super-2 number, since 2×10638655² = 226361960418050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10638655.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14209 + ... + 14938.

It is an arithmetic number, because the mean of its divisors is an integer number (1617714).

Almost surely, 2^10638655 is an apocalyptic number.

10638655 is a deficient number, since it is larger than the sum of its proper divisors (2303057).

10638655 is an equidigital number, since it uses as much as digits as its factorization.

10638655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29225.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 10638655 is about 3261.6951114413. The cubic root of 10638655 is about 219.9356216587.

The spelling of 10638655 in words is "ten million, six hundred thirty-eight thousand, six hundred fifty-five".