6406998 has 16 divisors (see below), whose sum is σ = 13799856. Its totient is φ = 1971360.

The previous prime is 6406997. The next prime is 6407003. The reversal of 6406998 is 8996046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6406997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40993 + ... + 41148.

It is an arithmetic number, because the mean of its divisors is an integer number (862491).

Almost surely, 2^6406998 is an apocalyptic number.

6406998 is an abundant number, since it is smaller than the sum of its proper divisors (7392858).

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

6406998 is a wasteful number, since it uses less digits than its factorization.

6406998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82159.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 6406998 is about 2531.2048514492. The cubic root of 6406998 is about 185.7311991922.

The spelling of 6406998 in words is "six million, four hundred six thousand, nine hundred ninety-eight".