6990842 has 16 divisors (see below), whose sum is σ = 11197440. Its totient is φ = 3261888.

The previous prime is 6990839. The next prime is 6990853. The reversal of 6990842 is 2480996.

It is a junction number, because it is equal to n+sod(n) for n = 6990796 and 6990805.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3509 + ... + 5127.

It is an arithmetic number, because the mean of its divisors is an integer number (699840).

Almost surely, 2^6990842 is an apocalyptic number.

6990842 is the 2159-th pentagonal number.

6990842 is a deficient number, since it is larger than the sum of its proper divisors (4206598).

6990842 is a wasteful number, since it uses less digits than its factorization.

6990842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1765.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 6990842 is about 2644.0200453098. The cubic root of 6990842 is about 191.2096598529.

The spelling of 6990842 in words is "six million, nine hundred ninety thousand, eight hundred forty-two".