3427778 has 16 divisors (see below), whose sum is σ = 5484024. Its totient is φ = 1601280.

The previous prime is 3427777. The next prime is 3427783. The reversal of 3427778 is 8777243.

It can be written as a sum of positive squares in 4 ways, for example, as 1570009 + 1857769 = 1253^2 + 1363^2 .

It is not an unprimeable number, because it can be changed into a prime (3427777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5876 + ... + 6432.

Almost surely, 2^3427778 is an apocalyptic number.

3427778 is a deficient number, since it is larger than the sum of its proper divisors (2056246).

3427778 is a wasteful number, since it uses less digits than its factorization.

3427778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757.

The product of its digits is 65856, while the sum is 38.

The square root of 3427778 is about 1851.4259369470. The cubic root of 3427778 is about 150.7778555949. Note that the first 3 decimals are identical.

The spelling of 3427778 in words is "three million, four hundred twenty-seven thousand, seven hundred seventy-eight".