9973545 has 16 divisors (see below), whose sum is σ = 15999552. Its totient is φ = 5305280.

The previous prime is 9973531. The next prime is 9973547. The reversal of 9973545 is 5453799.

It is not a de Polignac number, because 9973545 - 2⁷ = 9973417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9973497 and 9973506.

It is not an unprimeable number, because it can be changed into a prime (9973547) 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 15 ways as a sum of consecutive naturals, for example, 7855 + ... + 9035.

It is an arithmetic number, because the mean of its divisors is an integer number (999972).

Almost surely, 2^9973545 is an apocalyptic number.

It is an amenable number.

9973545 is a deficient number, since it is larger than the sum of its proper divisors (6026007).

9973545 is a wasteful number, since it uses less digits than its factorization.

9973545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752.

The product of its digits is 170100, while the sum is 42.

The square root of 9973545 is about 3158.0919872607. The cubic root of 9973545 is about 215.2533159888.

The spelling of 9973545 in words is "nine million, nine hundred seventy-three thousand, five hundred forty-five".