5665401 has 24 divisors (see below), whose sum is σ = 9846720. Its totient is φ = 3066336.

The previous prime is 5665399. The next prime is 5665417. The reversal of 5665401 is 1045665.

It is a happy number.

5665401 is a `hidden beast` number, since 5 + 6 + 654 + 0 + 1 = 666.

It is not a de Polignac number, because 5665401 - 2¹ = 5665399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5665441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1170 + ... + 3563.

It is an arithmetic number, because the mean of its divisors is an integer number (410280).

Almost surely, 2^5665401 is an apocalyptic number.

It is an amenable number.

5665401 is a deficient number, since it is larger than the sum of its proper divisors (4181319).

5665401 is a wasteful number, since it uses less digits than its factorization.

5665401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4765 (or 4762 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 5665401 is about 2380.2102848278. The cubic root of 5665401 is about 178.2694337306.

The spelling of 5665401 in words is "five million, six hundred sixty-five thousand, four hundred one".