9973797 has 4 divisors (see below), whose sum is σ = 13298400. Its totient is φ = 6649196.

The previous prime is 9973793. The next prime is 9973811. The reversal of 9973797 is 7973799.

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 9973797 - 2² = 9973793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9973793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1662297 + ... + 1662302.

It is an arithmetic number, because the mean of its divisors is an integer number (3324600).

Almost surely, 2^9973797 is an apocalyptic number.

It is an amenable number.

9973797 is a deficient number, since it is larger than the sum of its proper divisors (3324603).

9973797 is a wasteful number, since it uses less digits than its factorization.

9973797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3324602.

The product of its digits is 750141, while the sum is 51.

The square root of 9973797 is about 3158.1318845165. The cubic root of 9973797 is about 215.2551288975.

The spelling of 9973797 in words is "nine million, nine hundred seventy-three thousand, seven hundred ninety-seven".