3605381 has 8 divisors (see below), whose sum is σ = 3897600. Its totient is φ = 3315312.

The previous prime is 3605369. The next prime is 3605387. The reversal of 3605381 is 1835063.

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

It is a de Polignac number, because none of the positive numbers 2^k-3605381 is a prime.

It is a super-2 number, since 2×3605381² = 25997544310322, which contains 22 as substring.

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 3605381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3605387) 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, 5720 + ... + 6318.

It is an arithmetic number, because the mean of its divisors is an integer number (487200).

Almost surely, 2^3605381 is an apocalyptic number.

It is an amenable number.

3605381 is a deficient number, since it is larger than the sum of its proper divisors (292219).

3605381 is a wasteful number, since it uses less digits than its factorization.

3605381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 3605381 is about 1898.7840846184. The cubic root of 3605381 is about 153.3382097798.

The spelling of 3605381 in words is "three million, six hundred five thousand, three hundred eighty-one".