6986545 has 8 divisors (see below), whose sum is σ = 8418024. Its totient is φ = 5566464.

The previous prime is 6986543. The next prime is 6986569. The reversal of 6986545 is 5456896.

It can be written as a sum of positive squares in 4 ways, for example, as 2792241 + 4194304 = 1671^2 + 2048^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6986545 - 2¹ = 6986543 is a prime.

It is a super-2 number, since 2×6986545² = 97623622074050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6986543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1434 + ... + 4003.

It is an arithmetic number, because the mean of its divisors is an integer number (1052253).

Almost surely, 2^6986545 is an apocalyptic number.

It is an amenable number.

6986545 is a deficient number, since it is larger than the sum of its proper divisors (1431479).

6986545 is a wasteful number, since it uses less digits than its factorization.

6986545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5699.

The product of its digits is 259200, while the sum is 43.

The square root of 6986545 is about 2643.2073320116. The cubic root of 6986545 is about 191.1704754310.

The spelling of 6986545 in words is "six million, nine hundred eighty-six thousand, five hundred forty-five".