3646161 has 8 divisors (see below), whose sum is σ = 5401760. Its totient is φ = 2430756.

The previous prime is 3646129. The next prime is 3646183. The reversal of 3646161 is 1616463.

3646161 is a `hidden beast` number, since 3 + 646 + 16 + 1 = 666.

It is not a de Polignac number, because 3646161 - 2⁵ = 3646129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 135043 = 3646161 / (3 + 6 + 4 + 6 + 1 + 6 + 1).

It is a Duffinian number.

3646161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3646261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67495 + ... + 67548.

It is an arithmetic number, because the mean of its divisors is an integer number (675220).

Almost surely, 2^3646161 is an apocalyptic number.

It is an amenable number.

3646161 is a deficient number, since it is larger than the sum of its proper divisors (1755599).

3646161 is a wasteful number, since it uses less digits than its factorization.

3646161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135052 (or 135046 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 3646161 is about 1909.4923409116. The cubic root of 3646161 is about 153.9141732365.

The spelling of 3646161 in words is "three million, six hundred forty-six thousand, one hundred sixty-one".