9973544 has 32 divisors (see below), whose sum is σ = 21489600. Its totient is φ = 4250880.

The previous prime is 9973531. The next prime is 9973547. The reversal of 9973544 is 4453799.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9973547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13127 + ... + 13865.

It is an arithmetic number, because the mean of its divisors is an integer number (671550).

Almost surely, 2^9973544 is an apocalyptic number.

It is an amenable number.

9973544 is an abundant number, since it is smaller than the sum of its proper divisors (11516056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9973544 is a wasteful number, since it uses less digits than its factorization.

9973544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993 (or 989 counting only the distinct ones).

The product of its digits is 136080, while the sum is 41.

The square root of 9973544 is about 3158.0918289372. The cubic root of 9973544 is about 215.2533087947.

The spelling of 9973544 in words is "nine million, nine hundred seventy-three thousand, five hundred forty-four".