6446007 has 16 divisors (see below), whose sum is σ = 9606880. Its totient is φ = 4271616.

The previous prime is 6445993. The next prime is 6446017. The reversal of 6446007 is 7006446.

It is not a de Polignac number, because 6446007 - 2⁴ = 6445991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6446017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4593 + ... + 5829.

It is an arithmetic number, because the mean of its divisors is an integer number (600430).

Almost surely, 2^6446007 is an apocalyptic number.

6446007 is a deficient number, since it is larger than the sum of its proper divisors (3160873).

6446007 is a wasteful number, since it uses less digits than its factorization.

6446007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439 (or 1433 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 6446007 is about 2538.8987770291. The cubic root of 6446007 is about 186.1073781649.

The spelling of 6446007 in words is "six million, four hundred forty-six thousand, seven".