88905605 has 8 divisors (see below), whose sum is σ = 108148632. Its totient is φ = 70149888.

The previous prime is 88905601. The next prime is 88905637. The reversal of 88905605 is 50650988.

It can be written as a sum of positive squares in 4 ways, for example, as 4669921 + 84235684 = 2161^2 + 9178^2 .

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 88905605 - 2² = 88905601 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88905601) 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 7 ways as a sum of consecutive naturals, for example, 121424 + ... + 122153.

It is an arithmetic number, because the mean of its divisors is an integer number (13518579).

Almost surely, 2^88905605 is an apocalyptic number.

It is an amenable number.

88905605 is a deficient number, since it is larger than the sum of its proper divisors (19243027).

88905605 is a wasteful number, since it uses less digits than its factorization.

88905605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243655.

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 88905605 is about 9428.9768798104. The cubic root of 88905605 is about 446.3166074236.

The spelling of 88905605 in words is "eighty-eight million, nine hundred five thousand, six hundred five".