6406708 has 72 divisors (see below), whose sum is σ = 14776832. Its totient is φ = 2376000.

The previous prime is 6406691. The next prime is 6406717. The reversal of 6406708 is 8076046.

6406708 = 52² + 53² + ... + 268².

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 6406708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104998 + ... + 105058.

Almost surely, 2^6406708 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6406708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7388416).

6406708 is an abundant number, since it is smaller than the sum of its proper divisors (8370124).

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

6406708 is a wasteful number, since it uses less digits than its factorization.

6406708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 6406708 is about 2531.1475658286. The cubic root of 6406708 is about 185.7283968990.

The spelling of 6406708 in words is "six million, four hundred six thousand, seven hundred eight".