6994985 has 4 divisors (see below), whose sum is σ = 8393988. Its totient is φ = 5595984.

The previous prime is 6994951. The next prime is 6994987. The reversal of 6994985 is 5894996.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4393216 + 2601769 = 2096^2 + 1613^2 .

It is a cyclic number.

It is not a de Polignac number, because 6994985 - 2¹² = 6990889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6994987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 699494 + ... + 699503.

It is an arithmetic number, because the mean of its divisors is an integer number (2098497).

Almost surely, 2^6994985 is an apocalyptic number.

It is an amenable number.

6994985 is a deficient number, since it is larger than the sum of its proper divisors (1399003).

6994985 is a wasteful number, since it uses less digits than its factorization.

6994985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399002.

The product of its digits is 699840, while the sum is 50.

The square root of 6994985 is about 2644.8033953396. The cubic root of 6994985 is about 191.2474247450.

The spelling of 6994985 in words is "six million, nine hundred ninety-four thousand, nine hundred eighty-five".