6403698 has 40 divisors (see below), whose sum is σ = 16401792. Its totient is φ = 1829304.

The previous prime is 6403687. The next prime is 6403711. The reversal of 6403698 is 8963046.

6403698 is a `hidden beast` number, since 640 + 3 + 6 + 9 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1690 + ... + 3957.

Almost surely, 2^6403698 is an apocalyptic number.

6403698 is an abundant number, since it is smaller than the sum of its proper divisors (9998094).

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

6403698 is a wasteful number, since it uses less digits than its factorization.

6403698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5668 (or 5659 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 6403698 is about 2530.5529040113. The cubic root of 6403698 is about 185.6993060333.

The spelling of 6403698 in words is "six million, four hundred three thousand, six hundred ninety-eight".