4851778 has 4 divisors (see below), whose sum is σ = 7277670. Its totient is φ = 2425888.

The previous prime is 4851761. The next prime is 4851793. The reversal of 4851778 is 8771584.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3143529 + 1708249 = 1773^2 + 1307^2 .

It is a super-2 number, since 2×4851778² = 47079499522568, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 4851778.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1212943 + ... + 1212946.

Almost surely, 2^4851778 is an apocalyptic number.

4851778 is a deficient number, since it is larger than the sum of its proper divisors (2425892).

4851778 is a wasteful number, since it uses less digits than its factorization.

4851778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425891.

The product of its digits is 62720, while the sum is 40.

The square root of 4851778 is about 2202.6751916703. The cubic root of 4851778 is about 169.2909103156.

The spelling of 4851778 in words is "four million, eight hundred fifty-one thousand, seven hundred seventy-eight".