3661761 has 8 divisors (see below), whose sum is σ = 5094720. Its totient is φ = 2334992.

The previous prime is 3661759. The next prime is 3661771. The reversal of 3661761 is 1671663.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3661761 - 2¹ = 3661759 is a prime.

It is a super-2 number, since 2×3661761² = 26816987242242, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3661771) 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, 26466 + ... + 26603.

It is an arithmetic number, because the mean of its divisors is an integer number (636840).

Almost surely, 2^3661761 is an apocalyptic number.

It is an amenable number.

3661761 is a deficient number, since it is larger than the sum of its proper divisors (1432959).

3661761 is a wasteful number, since it uses less digits than its factorization.

3661761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53095.

The product of its digits is 4536, while the sum is 30.

The square root of 3661761 is about 1913.5728363457. The cubic root of 3661761 is about 154.1333667872.

The spelling of 3661761 in words is "three million, six hundred sixty-one thousand, seven hundred sixty-one".