9989701 has 4 divisors (see below), whose sum is σ = 9997900. Its totient is φ = 9981504.

The previous prime is 9989699. The next prime is 9989713. The reversal of 9989701 is 1079899.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1079899 = 41 ⋅26339.

It can be written as a sum of positive squares in 2 ways, for example, as 4301476 + 5688225 = 2074^2 + 2385^2 .

It is a cyclic number.

It is not a de Polignac number, because 9989701 - 2¹ = 9989699 is a prime.

It is a Duffinian number.

9989701 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9984701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1866 + ... + 4843.

It is an arithmetic number, because the mean of its divisors is an integer number (2499475).

Almost surely, 2^9989701 is an apocalyptic number.

It is an amenable number.

9989701 is a deficient number, since it is larger than the sum of its proper divisors (8199).

9989701 is a wasteful number, since it uses less digits than its factorization.

9989701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8198.

The product of its (nonzero) digits is 40824, while the sum is 43.

The square root of 9989701 is about 3160.6488257951. The cubic root of 9989701 is about 215.3694818547.

The spelling of 9989701 in words is "nine million, nine hundred eighty-nine thousand, seven hundred one".