6466039 has 4 divisors (see below), whose sum is σ = 6616456. Its totient is φ = 6315624.

The previous prime is 6466037. The next prime is 6466051. The reversal of 6466039 is 9306646.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6466039 - 2¹ = 6466037 is a prime.

It is a Duffinian number.

6466039 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6465995 and 6466013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6466037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75144 + ... + 75229.

It is an arithmetic number, because the mean of its divisors is an integer number (1654114).

Almost surely, 2^6466039 is an apocalyptic number.

6466039 is a deficient number, since it is larger than the sum of its proper divisors (150417).

6466039 is a wasteful number, since it uses less digits than its factorization.

6466039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150416.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 6466039 is about 2542.8407342970. The cubic root of 6466039 is about 186.2999649741.

The spelling of 6466039 in words is "six million, four hundred sixty-six thousand, thirty-nine".