908066881 has 4 divisors (see below), whose sum is σ = 909484164. Its totient is φ = 906649600.

The previous prime is 908066779. The next prime is 908066903. The reversal of 908066881 is 188660809.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 188660809 = 179 ⋅1053971.

It can be written as a sum of positive squares in 2 ways, for example, as 698280625 + 209786256 = 26425^2 + 14484^2 .

It is a cyclic number.

It is not a de Polignac number, because 908066881 - 2¹⁹ = 907542593 is a prime.

It is a super-2 number, since 2×908066881² = 1649170920738136322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (908066281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 707680 + ... + 708961.

It is an arithmetic number, because the mean of its divisors is an integer number (227371041).

Almost surely, 2^908066881 is an apocalyptic number.

It is an amenable number.

908066881 is a deficient number, since it is larger than the sum of its proper divisors (1417283).

908066881 is a wasteful number, since it uses less digits than its factorization.

908066881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417282.

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 908066881 is about 30134.1480881740. The cubic root of 908066881 is about 968.3654339502.

The spelling of 908066881 in words is "nine hundred eight million, sixty-six thousand, eight hundred eighty-one".