6391002 has 16 divisors (see below), whose sum is σ = 12850560. Its totient is φ = 2118912.

The previous prime is 6390983. The next prime is 6391009. The reversal of 6391002 is 2001936.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6391002.

It is not an unprimeable number, because it can be changed into a prime (6391009) 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, 1602 + ... + 3917.

It is an arithmetic number, because the mean of its divisors is an integer number (803160).

Almost surely, 2^6391002 is an apocalyptic number.

6391002 is an abundant number, since it is smaller than the sum of its proper divisors (6459558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6391002 is a wasteful number, since it uses less digits than its factorization.

6391002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5717.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 6391002 is about 2528.0431167209. The cubic root of 6391002 is about 185.5765020849.

Adding to 6391002 its reverse (2001936), we get a palindrome (8392938).

The spelling of 6391002 in words is "six million, three hundred ninety-one thousand, two".