6985390 has 8 divisors (see below), whose sum is σ = 12573720. Its totient is φ = 2794152.

The previous prime is 6985373. The next prime is 6985397. The reversal of 6985390 is 935896.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6985397) 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 3 ways as a sum of consecutive naturals, for example, 349260 + ... + 349279.

It is an arithmetic number, because the mean of its divisors is an integer number (1571715).

Almost surely, 2^6985390 is an apocalyptic number.

6985390 is a deficient number, since it is larger than the sum of its proper divisors (5588330).

6985390 is a wasteful number, since it uses less digits than its factorization.

6985390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698546.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 6985390 is about 2642.9888384176. The cubic root of 6985390 is about 191.1599402252.

The spelling of 6985390 in words is "six million, nine hundred eighty-five thousand, three hundred ninety".