1008655 has 4 divisors (see below), whose sum is σ = 1210392. Its totient is φ = 806920.

The previous prime is 1008617. The next prime is 1008659. The reversal of 1008655 is 5568001.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-1008655 is a prime.

It is a Duffinian number.

1008655 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1008659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100861 + ... + 100870.

It is an arithmetic number, because the mean of its divisors is an integer number (302598).

2^1008655 is an apocalyptic number.

1008655 is a deficient number, since it is larger than the sum of its proper divisors (201737).

1008655 is an equidigital number, since it uses as much as digits as its factorization.

1008655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201736.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1008655 is about 1004.3181766751. The cubic root of 1008655 is about 100.2876716566.

The spelling of 1008655 in words is "one million, eight thousand, six hundred fifty-five".