9973751 has 2 divisors, whose sum is σ = 9973752. Its totient is φ = 9973750.

The previous prime is 9973673. The next prime is 9973753. The reversal of 9973751 is 1573799.

It is a strong prime.

It is an emirp because it is prime and its reverse (1573799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9973751 - 2²² = 5779447 is a prime.

Together with 9973753, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 9973699 and 9973708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9973753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4986875 + 4986876.

It is an arithmetic number, because the mean of its divisors is an integer number (4986876).

Almost surely, 2^9973751 is an apocalyptic number.

9973751 is a deficient number, since it is larger than the sum of its proper divisors (1).

9973751 is an equidigital number, since it uses as much as digits as its factorization.

9973751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 59535, while the sum is 41.

The square root of 9973751 is about 3158.1246017217. The cubic root of 9973751 is about 215.2547979720.

The spelling of 9973751 in words is "nine million, nine hundred seventy-three thousand, seven hundred fifty-one".