6404463 has 48 divisors (see below), whose sum is σ = 10890880. Its totient is φ = 3592512.

The previous prime is 6404449. The next prime is 6404473. The reversal of 6404463 is 3644046.

It is a happy number.

It is not a de Polignac number, because 6404463 - 2¹² = 6400367 is a prime.

It is a super-4 number, since 4×6404463⁴ (a number of 28 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6404473) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95556 + ... + 95622.

Almost surely, 2^6404463 is an apocalyptic number.

6404463 is a deficient number, since it is larger than the sum of its proper divisors (4486417).

6404463 is a wasteful number, since it uses less digits than its factorization.

6404463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 6404463 is about 2530.7040522353. The cubic root of 6404463 is about 185.7067004228.

The spelling of 6404463 in words is "six million, four hundred four thousand, four hundred sixty-three".