6825745 has 4 divisors (see below), whose sum is σ = 8190900. Its totient is φ = 5460592.

The previous prime is 6825743. The next prime is 6825757. The reversal of 6825745 is 5475286.

It is a happy number.

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 1046529 + 5779216 = 1023^2 + 2404^2 .

It is a cyclic number.

It is not a de Polignac number, because 6825745 - 2¹ = 6825743 is a prime.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (6825743) 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, 682570 + ... + 682579.

It is an arithmetic number, because the mean of its divisors is an integer number (2047725).

Almost surely, 2^6825745 is an apocalyptic number.

It is an amenable number.

6825745 is a deficient number, since it is larger than the sum of its proper divisors (1365155).

6825745 is a wasteful number, since it uses less digits than its factorization.

6825745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365154.

The product of its digits is 67200, while the sum is 37.

The square root of 6825745 is about 2612.6126769960. The cubic root of 6825745 is about 189.6924386938.

The spelling of 6825745 in words is "six million, eight hundred twenty-five thousand, seven hundred forty-five".