6420027 has 8 divisors (see below), whose sum is σ = 8577360. Its totient is φ = 4271360.

The previous prime is 6420023. The next prime is 6420031. The reversal of 6420027 is 7200246.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6420023) and next prime (6420031).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6420027 - 2² = 6420023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6419985 and 6420012.

It is not an unprimeable number, because it can be changed into a prime (6420023) 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, 174 + ... + 3587.

It is an arithmetic number, because the mean of its divisors is an integer number (1072170).

Almost surely, 2^6420027 is an apocalyptic number.

6420027 is a deficient number, since it is larger than the sum of its proper divisors (2157333).

6420027 is a wasteful number, since it uses less digits than its factorization.

6420027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4333.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 6420027 is about 2533.7772198834. Note that the first 3 decimals coincide. The cubic root of 6420027 is about 185.8570123169.

The spelling of 6420027 in words is "six million, four hundred twenty thousand, twenty-seven".