9997953 has 16 divisors (see below), whose sum is σ = 15761280. Its totient is φ = 5515776.

The previous prime is 9997951. The next prime is 9997957. The reversal of 9997953 is 3597999.

It is not a de Polignac number, because 9997953 - 2¹ = 9997951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9997896 and 9997905.

It is not an unprimeable number, because it can be changed into a prime (9997951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7600 + ... + 8817.

It is an arithmetic number, because the mean of its divisors is an integer number (985080).

Almost surely, 2^9997953 is an apocalyptic number.

It is an amenable number.

9997953 is a deficient number, since it is larger than the sum of its proper divisors (5763327).

9997953 is a wasteful number, since it uses less digits than its factorization.

9997953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16456.

The product of its digits is 688905, while the sum is 51.

The square root of 9997953 is about 3161.9539844849. The cubic root of 9997953 is about 215.4287675740.

The spelling of 9997953 in words is "nine million, nine hundred ninety-seven thousand, nine hundred fifty-three".