6802945 has 4 divisors (see below), whose sum is σ = 8163540. Its totient is φ = 5442352.

The previous prime is 6802937. The next prime is 6802949. The reversal of 6802945 is 5492086.

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 5161984 + 1640961 = 2272^2 + 1281^2 .

It is a cyclic number.

It is not a de Polignac number, because 6802945 - 2³ = 6802937 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6802945.

It is not an unprimeable number, because it can be changed into a prime (6802949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680290 + ... + 680299.

It is an arithmetic number, because the mean of its divisors is an integer number (2040885).

Almost surely, 2^6802945 is an apocalyptic number.

It is an amenable number.

6802945 is a deficient number, since it is larger than the sum of its proper divisors (1360595).

6802945 is a wasteful number, since it uses less digits than its factorization.

6802945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360594.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 6802945 is about 2608.2455789285. The cubic root of 6802945 is about 189.4809935384.

The spelling of 6802945 in words is "six million, eight hundred two thousand, nine hundred forty-five".