6981608 has 16 divisors (see below), whose sum is σ = 13136580. Its totient is φ = 3478528.

The previous prime is 6981599. The next prime is 6981613. The reversal of 6981608 is 8061896.

It can be written as a sum of positive squares in 2 ways, for example, as 6980164 + 1444 = 2642^2 + 38^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1160 + ... + 3912.

Almost surely, 2^6981608 is an apocalyptic number.

It is an amenable number.

6981608 is a deficient number, since it is larger than the sum of its proper divisors (6154972).

6981608 is a wasteful number, since it uses less digits than its factorization.

6981608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3076 (or 3072 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 6981608 is about 2642.2732636879. The cubic root of 6981608 is about 191.1254349979.

The spelling of 6981608 in words is "six million, nine hundred eighty-one thousand, six hundred eight".