9913826971 has 4 divisors (see below), whose sum is σ = 9914234944. Its totient is φ = 9913419000.

The previous prime is 9913826959. The next prime is 9913827013. The reversal of 9913826971 is 1796283199.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9913826971 - 2⁷ = 9913826843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9913826921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165060 + ... + 216961.

It is an arithmetic number, because the mean of its divisors is an integer number (2478558736).

Almost surely, 2^9913826971 is an apocalyptic number.

9913826971 is a deficient number, since it is larger than the sum of its proper divisors (407973).

9913826971 is a wasteful number, since it uses less digits than its factorization.

9913826971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407972.

The product of its digits is 1469664, while the sum is 55.

The square root of 9913826971 is about 99568.2026100702. The cubic root of 9913826971 is about 2148.2283563590.

The spelling of 9913826971 in words is "nine billion, nine hundred thirteen million, eight hundred twenty-six thousand, nine hundred seventy-one".