9872829 has 6 divisors (see below), whose sum is σ = 14260766. Its totient is φ = 6581880.

The previous prime is 9872827. The next prime is 9872839. The reversal of 9872829 is 9282789.

It can be written as a sum of positive squares in only one way, i.e., 8122500 + 1750329 = 2850^2 + 1323^2 .

It is not a de Polignac number, because 9872829 - 2¹ = 9872827 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9872827) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 548482 + ... + 548499.

Almost surely, 2^9872829 is an apocalyptic number.

It is an amenable number.

9872829 is a deficient number, since it is larger than the sum of its proper divisors (4387937).

9872829 is a wasteful number, since it uses less digits than its factorization.

9872829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096987 (or 1096984 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 9872829 is about 3142.1058225337. The cubic root of 9872829 is about 214.5262979803.

It can be divided in two parts, 9872 and 829, that added together give a palindrome (10701).

The spelling of 9872829 in words is "nine million, eight hundred seventy-two thousand, eight hundred twenty-nine".