6407869 has 16 divisors (see below), whose sum is σ = 7459200. Its totient is φ = 5455296.

The previous prime is 6407857. The next prime is 6407873. The reversal of 6407869 is 9687046.

It is a cyclic number.

It is not a de Polignac number, because 6407869 - 2⁷ = 6407741 is a prime.

It is a super-2 number, since 2×6407869² = 82121570242322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

6407869 is a lucky number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6407809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8302 + ... + 9040.

It is an arithmetic number, because the mean of its divisors is an integer number (466200).

Almost surely, 2^6407869 is an apocalyptic number.

It is an amenable number.

6407869 is a deficient number, since it is larger than the sum of its proper divisors (1051331).

6407869 is a wasteful number, since it uses less digits than its factorization.

6407869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 6407869 is about 2531.3768980537. The cubic root of 6407869 is about 185.7396152265.

The spelling of 6407869 in words is "six million, four hundred seven thousand, eight hundred sixty-nine".