6404776 has 16 divisors (see below), whose sum is σ = 13724640. Its totient is φ = 2744880.

The previous prime is 6404773. The next prime is 6404777. The reversal of 6404776 is 6774046.

It is a super-2 number, since 2×6404776² = 82042311220352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6404771) 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 3 ways as a sum of consecutive naturals, for example, 57130 + ... + 57241.

It is an arithmetic number, because the mean of its divisors is an integer number (857790).

Almost surely, 2^6404776 is an apocalyptic number.

It is an amenable number.

6404776 is an abundant number, since it is smaller than the sum of its proper divisors (7319864).

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

6404776 is a wasteful number, since it uses less digits than its factorization.

6404776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114384 (or 114380 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 6404776 is about 2530.7658919782. The cubic root of 6404776 is about 185.7097256699.

The spelling of 6404776 in words is "six million, four hundred four thousand, seven hundred seventy-six".