9827913 has 4 divisors (see below), whose sum is σ = 13103888. Its totient is φ = 6551940.

The previous prime is 9827879. The next prime is 9827927. The reversal of 9827913 is 3197289.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3197289 = 3 ⋅1065763.

It is not a de Polignac number, because 9827913 - 2²¹ = 7730761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9827953) 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, 1637983 + ... + 1637988.

It is an arithmetic number, because the mean of its divisors is an integer number (3275972).

Almost surely, 2^9827913 is an apocalyptic number.

It is an amenable number.

9827913 is a deficient number, since it is larger than the sum of its proper divisors (3275975).

9827913 is a wasteful number, since it uses less digits than its factorization.

9827913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275974.

The product of its digits is 27216, while the sum is 39.

The square root of 9827913 is about 3134.9502388395. The cubic root of 9827913 is about 214.2004774012.

The spelling of 9827913 in words is "nine million, eight hundred twenty-seven thousand, nine hundred thirteen".