2197797 has 12 divisors (see below), whose sum is σ = 3409056. Its totient is φ = 1255800.

The previous prime is 2197781. The next prime is 2197799. The reversal of 2197797 is 7977912.

It is not a de Polignac number, because 2197797 - 2⁴ = 2197781 is a prime.

It is a super-3 number, since 3×2197797³ = 31848133381463341719, which contains 333 as substring.

2197797 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197799) 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, 7329 + ... + 7622.

It is an arithmetic number, because the mean of its divisors is an integer number (284088).

2^2197797 is an apocalyptic number.

It is an amenable number.

2197797 is a deficient number, since it is larger than the sum of its proper divisors (1211259).

2197797 is a wasteful number, since it uses less digits than its factorization.

2197797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14968 (or 14961 counting only the distinct ones).

The product of its digits is 55566, while the sum is 42.

The square root of 2197797 is about 1482.4968802665. The cubic root of 2197797 is about 130.0157180206.

The spelling of 2197797 in words is "two million, one hundred ninety-seven thousand, seven hundred ninety-seven".