5644778 has 8 divisors (see below), whose sum is σ = 8521572. Its totient is φ = 2804256.

The previous prime is 5644777. The next prime is 5644781. The reversal of 5644778 is 8774465.

It can be written as a sum of positive squares in 2 ways, for example, as 5583769 + 61009 = 2363^2 + 247^2 .

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

It is not an unprimeable number, because it can be changed into a prime (5644777) 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 3 ways as a sum of consecutive naturals, for example, 8675 + ... + 9302.

Almost surely, 2^5644778 is an apocalyptic number.

5644778 is a deficient number, since it is larger than the sum of its proper divisors (2876794).

5644778 is a wasteful number, since it uses less digits than its factorization.

5644778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18136.

The product of its digits is 188160, while the sum is 41.

The square root of 5644778 is about 2375.8741549165. The cubic root of 5644778 is about 178.0528606208.

The spelling of 5644778 in words is "five million, six hundred forty-four thousand, seven hundred seventy-eight".