9943973 has 16 divisors (see below), whose sum is σ = 11397120. Its totient is φ = 8600256.

The previous prime is 9943957. The next prime is 9943993. The reversal of 9943973 is 3793499.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 9943973 - 2⁴ = 9943957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9943903) 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, 31211 + ... + 31527.

It is an arithmetic number, because the mean of its divisors is an integer number (712320).

Almost surely, 2^9943973 is an apocalyptic number.

It is an amenable number.

9943973 is a deficient number, since it is larger than the sum of its proper divisors (1453147).

9943973 is a wasteful number, since it uses less digits than its factorization.

9943973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476.

The product of its digits is 183708, while the sum is 44.

The square root of 9943973 is about 3153.4065706788. The cubic root of 9943973 is about 215.0403601894.

The spelling of 9943973 in words is "nine million, nine hundred forty-three thousand, nine hundred seventy-three".