5628778 has 4 divisors (see below), whose sum is σ = 8443170. Its totient is φ = 2814388.

The previous prime is 5628757. The next prime is 5628793. The reversal of 5628778 is 8778265.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8778265 = 5 ⋅1755653.

It can be written as a sum of positive squares in only one way, i.e., 5489649 + 139129 = 2343^2 + 373^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1407193 + ... + 1407196.

Almost surely, 2^5628778 is an apocalyptic number.

5628778 is a deficient number, since it is larger than the sum of its proper divisors (2814392).

5628778 is a wasteful number, since it uses less digits than its factorization.

5628778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814391.

The product of its digits is 188160, while the sum is 43.

The square root of 5628778 is about 2372.5045837680. The cubic root of 5628778 is about 177.8844724409.

It can be divided in two parts, 56287 and 78, that added together give a palindrome (56365).

The spelling of 5628778 in words is "five million, six hundred twenty-eight thousand, seven hundred seventy-eight".