881590081 has 4 divisors (see below), whose sum is σ = 890149312. Its totient is φ = 873030852.

The previous prime is 881590067. The next prime is 881590109. The reversal of 881590081 is 180095188.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 881590081 - 2¹¹ = 881588033 is a prime.

It is a super-2 number, since 2×881590081² = 1554402141835173122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (881590781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4279461 + ... + 4279666.

It is an arithmetic number, because the mean of its divisors is an integer number (222537328).

Almost surely, 2^881590081 is an apocalyptic number.

It is an amenable number.

881590081 is a deficient number, since it is larger than the sum of its proper divisors (8559231).

881590081 is a wasteful number, since it uses less digits than its factorization.

881590081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8559230.

The product of its (nonzero) digits is 23040, while the sum is 40.

The square root of 881590081 is about 29691.5826624315. The cubic root of 881590081 is about 958.8608018279.

The spelling of 881590081 in words is "eight hundred eighty-one million, five hundred ninety thousand, eighty-one".