6406767 has 12 divisors (see below), whose sum is σ = 9573720. Its totient is φ = 4123728.

The previous prime is 6406759. The next prime is 6406787. The reversal of 6406767 is 7676046.

6406767 is a `hidden beast` number, since 640 + 6 + 7 + 6 + 7 = 666.

6406767 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6406767 - 2³ = 6406759 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6406717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12013 + ... + 12534.

It is an arithmetic number, because the mean of its divisors is an integer number (797810).

Almost surely, 2^6406767 is an apocalyptic number.

6406767 is a deficient number, since it is larger than the sum of its proper divisors (3166953).

6406767 is a wasteful number, since it uses less digits than its factorization.

6406767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24582 (or 24579 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 6406767 is about 2531.1592205944. The cubic root of 6406767 is about 185.7289670276.

The spelling of 6406767 in words is "six million, four hundred six thousand, seven hundred sixty-seven".