6985990 has 32 divisors (see below), whose sum is σ = 14061600. Its totient is φ = 2476800.

The previous prime is 6985981. The next prime is 6986011. The reversal of 6985990 is 995896.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6985990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3736 + ... + 5284.

It is an arithmetic number, because the mean of its divisors is an integer number (439425).

Almost surely, 2^6985990 is an apocalyptic number.

6985990 is an abundant number, since it is smaller than the sum of its proper divisors (7075610).

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

6985990 is a wasteful number, since it uses less digits than its factorization.

6985990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608.

The product of its (nonzero) digits is 174960, while the sum is 46.

The square root of 6985990 is about 2643.1023438376. The cubic root of 6985990 is about 191.1654132043.

The spelling of 6985990 in words is "six million, nine hundred eighty-five thousand, nine hundred ninety".