3401565 has 16 divisors (see below), whose sum is σ = 5576256. Its totient is φ = 1769600.

The previous prime is 3401561. The next prime is 3401569. The reversal of 3401565 is 5651043.

It is an interprime number because it is at equal distance from previous prime (3401561) and next prime (3401569).

It is not a de Polignac number, because 3401565 - 2² = 3401561 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3401561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2151 + ... + 3380.

It is an arithmetic number, because the mean of its divisors is an integer number (348516).

Almost surely, 2^3401565 is an apocalyptic number.

It is an amenable number.

3401565 is a deficient number, since it is larger than the sum of its proper divisors (2174691).

3401565 is a wasteful number, since it uses less digits than its factorization.

3401565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5580.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 3401565 is about 1844.3332128441. Note that the first 3 decimals coincide. The cubic root of 3401565 is about 150.3925274741.

The spelling of 3401565 in words is "three million, four hundred one thousand, five hundred sixty-five".