9155997 has 24 divisors (see below), whose sum is σ = 14064960. Its totient is φ = 5948640.

The previous prime is 9155987. The next prime is 9155999. The reversal of 9155997 is 7995519.

9155997 is a `hidden beast` number, since 9 + 1 + 559 + 97 = 666.

It is not a de Polignac number, because 9155997 - 2⁶ = 9155933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9155999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9504 + ... + 10422.

It is an arithmetic number, because the mean of its divisors is an integer number (586040).

Almost surely, 2^9155997 is an apocalyptic number.

It is an amenable number.

9155997 is a deficient number, since it is larger than the sum of its proper divisors (4908963).

9155997 is an equidigital number, since it uses as much as digits as its factorization.

9155997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975 (or 963 counting only the distinct ones).

The product of its digits is 127575, while the sum is 45.

The square root of 9155997 is about 3025.8878036041. The cubic root of 9155997 is about 209.2033078846.

The spelling of 9155997 in words is "nine million, one hundred fifty-five thousand, nine hundred ninety-seven".