6278004421 has 4 divisors (see below), whose sum is σ = 6760927852. Its totient is φ = 5795080992.

The previous prime is 6278004407. The next prime is 6278004427. The reversal of 6278004421 is 1244008726.

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: 1244008726 = 2 ⋅622004363.

It can be written as a sum of positive squares in 2 ways, for example, as 590733025 + 5687271396 = 24305^2 + 75414^2 .

It is a cyclic number.

It is not a de Polignac number, because 6278004421 - 2²³ = 6269615813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6278004427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241461696 + ... + 241461721.

It is an arithmetic number, because the mean of its divisors is an integer number (1690231963).

Almost surely, 2^6278004421 is an apocalyptic number.

It is an amenable number.

6278004421 is a deficient number, since it is larger than the sum of its proper divisors (482923431).

6278004421 is a wasteful number, since it uses less digits than its factorization.

6278004421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482923430.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 6278004421 is about 79233.8590565927. The cubic root of 6278004421 is about 1844.7628282859.

The spelling of 6278004421 in words is "six billion, two hundred seventy-eight million, four thousand, four hundred twenty-one".