6398007 has 16 divisors (see below), whose sum is σ = 10636032. Its totient is φ = 3323520.

The previous prime is 6397999. The next prime is 6398017. The reversal of 6398007 is 7008936.

It is a happy number.

It is not a de Polignac number, because 6398007 - 2³ = 6397999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

6398007 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6398017) 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, 13618 + ... + 14079.

It is an arithmetic number, because the mean of its divisors is an integer number (664752).

Almost surely, 2^6398007 is an apocalyptic number.

6398007 is a deficient number, since it is larger than the sum of its proper divisors (4238025).

6398007 is a wasteful number, since it uses less digits than its factorization.

6398007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27718.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 6398007 is about 2529.4281962531. The cubic root of 6398007 is about 185.6442790800.

It can be divided in two parts, 639 and 8007, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 6398007 in words is "six million, three hundred ninety-eight thousand, seven".