7297121 has 16 divisors (see below), whose sum is σ = 8547840. Its totient is φ = 6168960.

The previous prime is 7297117. The next prime is 7297123. The reversal of 7297121 is 1217927.

It is a cyclic number.

It is not a de Polignac number, because 7297121 - 2² = 7297117 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 (7297123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7181 + ... + 8133.

It is an arithmetic number, because the mean of its divisors is an integer number (534240).

Almost surely, 2^7297121 is an apocalyptic number.

It is an amenable number.

7297121 is a deficient number, since it is larger than the sum of its proper divisors (1250719).

7297121 is a wasteful number, since it uses less digits than its factorization.

7297121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016.

The product of its digits is 1764, while the sum is 29.

The square root of 7297121 is about 2701.3183818277. The cubic root of 7297121 is about 193.9622362460.

The spelling of 7297121 in words is "seven million, two hundred ninety-seven thousand, one hundred twenty-one".