6274778 has 4 divisors (see below), whose sum is σ = 9412170. Its totient is φ = 3137388.

The previous prime is 6274771. The next prime is 6274783. The reversal of 6274778 is 8774726.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8774726 = 2 ⋅4387363.

It can be written as a sum of positive squares in only one way, i.e., 3374569 + 2900209 = 1837^2 + 1703^2 .

It is not an unprimeable number, because it can be changed into a prime (6274771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1568693 + ... + 1568696.

Almost surely, 2^6274778 is an apocalyptic number.

6274778 is a deficient number, since it is larger than the sum of its proper divisors (3137392).

6274778 is a wasteful number, since it uses less digits than its factorization.

6274778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3137391.

The product of its digits is 131712, while the sum is 41.

The square root of 6274778 is about 2504.9506981176. The cubic root of 6274778 is about 184.4446751125. Note that the first 3 decimals are identical.

The spelling of 6274778 in words is "six million, two hundred seventy-four thousand, seven hundred seventy-eight".