6988986 has 12 divisors (see below), whose sum is σ = 15142842. Its totient is φ = 2329656.

The previous prime is 6988939. The next prime is 6988991. The reversal of 6988986 is 6898896.

It can be written as a sum of positive squares in only one way, i.e., 6095961 + 893025 = 2469^2 + 945^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 194121 + ... + 194156.

Almost surely, 2^6988986 is an apocalyptic number.

6988986 is an abundant number, since it is smaller than the sum of its proper divisors (8153856).

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

6988986 is a wasteful number, since it uses less digits than its factorization.

6988986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388285 (or 388282 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 6988986 is about 2643.6690413136. The cubic root of 6988986 is about 191.1927369252.

The spelling of 6988986 in words is "six million, nine hundred eighty-eight thousand, nine hundred eighty-six".