3810561 has 8 divisors (see below), whose sum is σ = 5096064. Its totient is φ = 2532720.

The previous prime is 3810559. The next prime is 3810563. The reversal of 3810561 is 1650183.

It is an interprime number because it is at equal distance from previous prime (3810559) and next prime (3810563).

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

It is not a de Polignac number, because 3810561 - 2¹ = 3810559 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3810563) 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, 630 + ... + 2831.

It is an arithmetic number, because the mean of its divisors is an integer number (637008).

Almost surely, 2^3810561 is an apocalyptic number.

It is an amenable number.

3810561 is a deficient number, since it is larger than the sum of its proper divisors (1285503).

3810561 is a wasteful number, since it uses less digits than its factorization.

3810561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3831.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 3810561 is about 1952.0658288080. The cubic root of 3810561 is about 156.1935057629.

It can be divided in two parts, 3810 and 561, that added together give a triangular number (4371 = T₉₃).

The spelling of 3810561 in words is "three million, eight hundred ten thousand, five hundred sixty-one".