9981935 has 16 divisors (see below), whose sum is σ = 12700800. Its totient is φ = 7510176.

The previous prime is 9981929. The next prime is 9981943. The reversal of 9981935 is 5391899.

It is a cyclic number.

It is not a de Polignac number, because 9981935 - 2⁴ = 9981919 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16712 + ... + 17298.

It is an arithmetic number, because the mean of its divisors is an integer number (793800).

Almost surely, 2^9981935 is an apocalyptic number.

9981935 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

9981935 is a deficient number, since it is larger than the sum of its proper divisors (2718865).

9981935 is a wasteful number, since it uses less digits than its factorization.

With its successor (9981936) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (790).

9981935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790.

The product of its digits is 87480, while the sum is 44.

The square root of 9981935 is about 3159.4200417165. The cubic root of 9981935 is about 215.3136579283.

The spelling of 9981935 in words is "nine million, nine hundred eighty-one thousand, nine hundred thirty-five".