5645910 has 16 divisors (see below), whose sum is σ = 13550256. Its totient is φ = 1505568.

The previous prime is 5645903. The next prime is 5645911. The reversal of 5645910 is 195465.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 188197 = 5645910 / (5 + 6 + 4 + 5 + 9 + 1 + 0).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94069 + ... + 94128.

It is an arithmetic number, because the mean of its divisors is an integer number (846891).

Almost surely, 2^5645910 is an apocalyptic number.

5645910 is an abundant number, since it is smaller than the sum of its proper divisors (7904346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5645910 is a wasteful number, since it uses less digits than its factorization.

5645910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188207.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 5645910 is about 2376.1123710801. The cubic root of 5645910 is about 178.0647620257.

It can be divided in two parts, 5645 and 910, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 5645910 in words is "five million, six hundred forty-five thousand, nine hundred ten".