9820881229 has 8 divisors (see below), whose sum is σ = 9899160480. Its totient is φ = 9742652400.

The previous prime is 9820881223. The next prime is 9820881247. The reversal of 9820881229 is 9221880289.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9820881229 - 2²¹ = 9818784077 is a prime.

It is a super-2 number, since 2×9820881229² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9820881223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443634 + ... + 465244.

It is an arithmetic number, because the mean of its divisors is an integer number (1237395060).

Almost surely, 2^9820881229 is an apocalyptic number.

It is an amenable number.

9820881229 is a deficient number, since it is larger than the sum of its proper divisors (78279251).

9820881229 is a wasteful number, since it uses less digits than its factorization.

9820881229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25211.

The product of its (nonzero) digits is 331776, while the sum is 49.

The square root of 9820881229 is about 99100.3593787631. The cubic root of 9820881229 is about 2141.4937913063.

The spelling of 9820881229 in words is "nine billion, eight hundred twenty million, eight hundred eighty-one thousand, two hundred twenty-nine".