6400862 has 8 divisors (see below), whose sum is σ = 10339896. Its totient is φ = 2954232.

The previous prime is 6400843. The next prime is 6400873. The reversal of 6400862 is 2680046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 246187 = 6400862 / (6 + 4 + 0 + 0 + 8 + 6 + 2).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 123068 + ... + 123119.

It is an arithmetic number, because the mean of its divisors is an integer number (1292487).

Almost surely, 2^6400862 is an apocalyptic number.

6400862 is a deficient number, since it is larger than the sum of its proper divisors (3939034).

6400862 is a wasteful number, since it uses less digits than its factorization.

6400862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246202.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 6400862 is about 2529.9924901074. The cubic root of 6400862 is about 185.6718884903.

The spelling of 6400862 in words is "six million, four hundred thousand, eight hundred sixty-two".