881147421 has 48 divisors (see below), whose sum is σ = 1598583168. Its totient is φ = 454348800.

The previous prime is 881147413. The next prime is 881147447. The reversal of 881147421 is 124741188.

881147421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 881147421 - 2³ = 881147413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881147221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 90301 + ... + 99581.

It is an arithmetic number, because the mean of its divisors is an integer number (33303816).

Almost surely, 2^881147421 is an apocalyptic number.

It is an amenable number.

881147421 is a deficient number, since it is larger than the sum of its proper divisors (717435747).

881147421 is a wasteful number, since it uses less digits than its factorization.

881147421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9442 (or 9439 counting only the distinct ones).

The product of its digits is 14336, while the sum is 36.

The square root of 881147421 is about 29684.1274252756. The cubic root of 881147421 is about 958.7002886852.

The spelling of 881147421 in words is "eight hundred eighty-one million, one hundred forty-seven thousand, four hundred twenty-one".