9881434 has 4 divisors (see below), whose sum is σ = 14822154. Its totient is φ = 4940716.

The previous prime is 9881429. The next prime is 9881449. The reversal of 9881434 is 4341889.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4341889 = 101 ⋅42989.

It can be written as a sum of positive squares in only one way, i.e., 6630625 + 3250809 = 2575^2 + 1803^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9881393 and 9881402.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2470357 + ... + 2470360.

Almost surely, 2^9881434 is an apocalyptic number.

9881434 is a deficient number, since it is larger than the sum of its proper divisors (4940720).

9881434 is a wasteful number, since it uses less digits than its factorization.

9881434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4940719.

The product of its digits is 27648, while the sum is 37.

The square root of 9881434 is about 3143.4748289115. The cubic root of 9881434 is about 214.5886057795.

The spelling of 9881434 in words is "nine million, eight hundred eighty-one thousand, four hundred thirty-four".