6445027 has 4 divisors (see below), whose sum is σ = 6450480. Its totient is φ = 6439576.

The previous prime is 6445003. The next prime is 6445051. The reversal of 6445027 is 7205446.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (6445003) and next prime (6445051).

It is a cyclic number.

It is not a de Polignac number, because 6445027 - 2¹¹ = 6442979 is a prime.

It is a Duffinian number.

6445027 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6444986 and 6445004.

It is not an unprimeable number, because it can be changed into a prime (6545027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127 + ... + 3592.

It is an arithmetic number, because the mean of its divisors is an integer number (1612620).

Almost surely, 2^6445027 is an apocalyptic number.

6445027 is a deficient number, since it is larger than the sum of its proper divisors (5453).

6445027 is a wasteful number, since it uses less digits than its factorization.

6445027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5452.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 6445027 is about 2538.7057726330. The cubic root of 6445027 is about 186.0979462549.

It can be divided in two parts, 644 and 5027, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 6445027 in words is "six million, four hundred forty-five thousand, twenty-seven".