2197039 has 4 divisors (see below), whose sum is σ = 2366056. Its totient is φ = 2028024.

The previous prime is 2197021. The next prime is 2197043. The reversal of 2197039 is 9307912.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2197039 - 2¹¹ = 2194991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2197039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84489 + ... + 84514.

It is an arithmetic number, because the mean of its divisors is an integer number (591514).

2^2197039 is an apocalyptic number.

2197039 is a deficient number, since it is larger than the sum of its proper divisors (169017).

2197039 is a wasteful number, since it uses less digits than its factorization.

2197039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169016.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 2197039 is about 1482.2412084408. The cubic root of 2197039 is about 130.0007692262. Note that the first 3 decimals are identical.

The spelling of 2197039 in words is "two million, one hundred ninety-seven thousand, thirty-nine".