9880819 has 4 divisors (see below), whose sum is σ = 10640896. Its totient is φ = 9120744.

The previous prime is 9880811. The next prime is 9880837. The reversal of 9880819 is 9180889.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9180889 = 157 ⋅58477.

It is a cyclic number.

It is not a de Polignac number, because 9880819 - 2³ = 9880811 is a prime.

It is a super-2 number, since 2×9880819² = 195261168221522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9880811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380019 + ... + 380044.

It is an arithmetic number, because the mean of its divisors is an integer number (2660224).

Almost surely, 2^9880819 is an apocalyptic number.

9880819 is a deficient number, since it is larger than the sum of its proper divisors (760077).

9880819 is a wasteful number, since it uses less digits than its factorization.

9880819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760076.

The product of its (nonzero) digits is 41472, while the sum is 43.

The square root of 9880819 is about 3143.3770057058. The cubic root of 9880819 is about 214.5841538369.

The spelling of 9880819 in words is "nine million, eight hundred eighty thousand, eight hundred nineteen".