9407997 has 12 divisors (see below), whose sum is σ = 13781664. Its totient is φ = 6183240.

The previous prime is 9407971. The next prime is 9408011. The reversal of 9407997 is 7997049.

It is not a de Polignac number, because 9407997 - 2¹⁰ = 9406973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9402997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6723 + ... + 8000.

It is an arithmetic number, because the mean of its divisors is an integer number (1148472).

Almost surely, 2^9407997 is an apocalyptic number.

It is an amenable number.

9407997 is a deficient number, since it is larger than the sum of its proper divisors (4373667).

9407997 is a wasteful number, since it uses less digits than its factorization.

9407997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14800 (or 14797 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 9407997 is about 3067.2458329909. The cubic root of 9407997 is about 211.1052610772.

It can be divided in two parts, 9407 and 997, that added together give a square (10404 = 102²).

The spelling of 9407997 in words is "nine million, four hundred seven thousand, nine hundred ninety-seven".