6938545 has 8 divisors (see below), whose sum is σ = 8343720. Its totient is φ = 5539200.

The previous prime is 6938531. The next prime is 6938557. The reversal of 6938545 is 5458396.

It can be written as a sum of positive squares in 4 ways, for example, as 2825761 + 4112784 = 1681^2 + 2028^2 .

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

It is not a de Polignac number, because 6938545 - 2⁷ = 6938417 is a prime.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 6938498 and 6938507.

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, 1851 + ... + 4159.

It is an arithmetic number, because the mean of its divisors is an integer number (1042965).

Almost surely, 2^6938545 is an apocalyptic number.

It is an amenable number.

6938545 is a deficient number, since it is larger than the sum of its proper divisors (1405175).

6938545 is a wasteful number, since it uses less digits than its factorization.

6938545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2915.

The product of its digits is 129600, while the sum is 40.

The square root of 6938545 is about 2634.1118047646. Note that the first 3 decimals coincide. The cubic root of 6938545 is about 190.7316663618.

The spelling of 6938545 in words is "six million, nine hundred thirty-eight thousand, five hundred forty-five".