6427378 has 4 divisors (see below), whose sum is σ = 9641070. Its totient is φ = 3213688.

The previous prime is 6427367. The next prime is 6427433. The reversal of 6427378 is 8737246.

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., 5987809 + 439569 = 2447^2 + 663^2 .

It is a super-2 number, since 2×6427378² = 82622375909768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1606843 + ... + 1606846.

Almost surely, 2^6427378 is an apocalyptic number.

6427378 is a deficient number, since it is larger than the sum of its proper divisors (3213692).

6427378 is a wasteful number, since it uses less digits than its factorization.

6427378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3213691.

The product of its digits is 56448, while the sum is 37.

The square root of 6427378 is about 2535.2274059737. The cubic root of 6427378 is about 185.9279213529.

The spelling of 6427378 in words is "six million, four hundred twenty-seven thousand, three hundred seventy-eight".