3613761 has 8 divisors (see below), whose sum is σ = 5353760. Its totient is φ = 2409156.

The previous prime is 3613759. The next prime is 3613787. The reversal of 3613761 is 1673163.

It is not a de Polignac number, because 3613761 - 2¹ = 3613759 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: 133843 = 3613761 / (3 + 6 + 1 + 3 + 7 + 6 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3613721) 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, 66895 + ... + 66948.

It is an arithmetic number, because the mean of its divisors is an integer number (669220).

Almost surely, 2^3613761 is an apocalyptic number.

It is an amenable number.

3613761 is a deficient number, since it is larger than the sum of its proper divisors (1739999).

3613761 is a wasteful number, since it uses less digits than its factorization.

3613761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133852 (or 133846 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 3613761 is about 1900.9894791923. The cubic root of 3613761 is about 153.4569193720.

The spelling of 3613761 in words is "three million, six hundred thirteen thousand, seven hundred sixty-one".