9973397 has 4 divisors (see below), whose sum is σ = 11398176. Its totient is φ = 8548620.

The previous prime is 9973393. The next prime is 9973409. The reversal of 9973397 is 7933799.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9973397 - 2² = 9973393 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 (9973393) 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 3 ways as a sum of consecutive naturals, for example, 712379 + ... + 712392.

It is an arithmetic number, because the mean of its divisors is an integer number (2849544).

Almost surely, 2^9973397 is an apocalyptic number.

It is an amenable number.

9973397 is a deficient number, since it is larger than the sum of its proper divisors (1424779).

9973397 is a wasteful number, since it uses less digits than its factorization.

9973397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424778.

The product of its digits is 321489, while the sum is 47.

The square root of 9973397 is about 3158.0685553040. The cubic root of 9973397 is about 215.2522512504.

The spelling of 9973397 in words is "nine million, nine hundred seventy-three thousand, three hundred ninety-seven".