6985406 has 8 divisors (see below), whose sum is σ = 10625904. Its totient is φ = 3443440.

The previous prime is 6985403. The next prime is 6985409. The reversal of 6985406 is 6045896.

It is an interprime number because it is at equal distance from previous prime (6985403) and next prime (6985409).

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

It is a self number, because there is not a number n which added to its sum of digits gives 6985406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6985403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24455 + ... + 24738.

It is an arithmetic number, because the mean of its divisors is an integer number (1328238).

Almost surely, 2^6985406 is an apocalyptic number.

6985406 is a deficient number, since it is larger than the sum of its proper divisors (3640498).

6985406 is a wasteful number, since it uses less digits than its factorization.

6985406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49266.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 6985406 is about 2642.9918652921. The cubic root of 6985406 is about 191.1600861754.

The spelling of 6985406 in words is "six million, nine hundred eighty-five thousand, four hundred six".