881281829 has 4 divisors (see below), whose sum is σ = 888221184. Its totient is φ = 874342476.

The previous prime is 881281781. The next prime is 881281837. The reversal of 881281829 is 928182188.

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 881281829 - 2²⁸ = 612846373 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 (881211829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3469487 + ... + 3469740.

It is an arithmetic number, because the mean of its divisors is an integer number (222055296).

Almost surely, 2^881281829 is an apocalyptic number.

It is an amenable number.

881281829 is a deficient number, since it is larger than the sum of its proper divisors (6939355).

881281829 is a wasteful number, since it uses less digits than its factorization.

881281829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6939354.

The product of its digits is 147456, while the sum is 47.

The square root of 881281829 is about 29686.3913098241. The cubic root of 881281829 is about 958.7490321131.

The spelling of 881281829 in words is "eight hundred eighty-one million, two hundred eighty-one thousand, eight hundred twenty-nine".