3609197 has 4 divisors (see below), whose sum is σ = 3613116. Its totient is φ = 3605280.

The previous prime is 3609191. The next prime is 3609209. The reversal of 3609197 is 7919063.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7919063 = 1877 ⋅4219.

It can be written as a sum of positive squares in 2 ways, for example, as 2621161 + 988036 = 1619^2 + 994^2 .

It is a cyclic number.

It is not a de Polignac number, because 3609197 - 2¹⁸ = 3347053 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 (3609191) 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, 263 + ... + 2699.

It is an arithmetic number, because the mean of its divisors is an integer number (903279).

Almost surely, 2^3609197 is an apocalyptic number.

It is an amenable number.

3609197 is a deficient number, since it is larger than the sum of its proper divisors (3919).

3609197 is a wasteful number, since it uses less digits than its factorization.

3609197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3918.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 3609197 is about 1899.7886724581. The cubic root of 3609197 is about 153.3922893430.

The spelling of 3609197 in words is "three million, six hundred nine thousand, one hundred ninety-seven".