881284447 has 4 divisors (see below), whose sum is σ = 893696976. Its totient is φ = 868871920.

The previous prime is 881284427. The next prime is 881284457. The reversal of 881284447 is 744482188.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-881284447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 881284397 and 881284406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881284427) 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, 6206158 + ... + 6206299.

It is an arithmetic number, because the mean of its divisors is an integer number (223424244).

Almost surely, 2^881284447 is an apocalyptic number.

881284447 is a deficient number, since it is larger than the sum of its proper divisors (12412529).

881284447 is a wasteful number, since it uses less digits than its factorization.

881284447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12412528.

The product of its digits is 458752, while the sum is 46.

The square root of 881284447 is about 29686.4354040697. The cubic root of 881284447 is about 958.7499814887.

The spelling of 881284447 in words is "eight hundred eighty-one million, two hundred eighty-four thousand, four hundred forty-seven".