9399897 has 12 divisors (see below), whose sum is σ = 14622244. Its totient is φ = 5784480.

The previous prime is 9399869. The next prime is 9399937. The reversal of 9399897 is 7989939.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4888521 + 4511376 = 2211^2 + 2124^2 .

It is not a de Polignac number, because 9399897 - 2⁸ = 9399641 is a prime.

It is a super-2 number, since 2×9399897² = 176716127221218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9399097) 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, 40054 + ... + 40287.

Almost surely, 2^9399897 is an apocalyptic number.

It is an amenable number.

9399897 is a deficient number, since it is larger than the sum of its proper divisors (5222347).

9399897 is a wasteful number, since it uses less digits than its factorization.

9399897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80360 (or 80357 counting only the distinct ones).

The product of its digits is 1102248, while the sum is 54.

The square root of 9399897 is about 3065.9251458573. The cubic root of 9399897 is about 211.0446586065.

It can be divided in two parts, 9399 and 897, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 9399897 in words is "nine million, three hundred ninety-nine thousand, eight hundred ninety-seven".