6904445 has 4 divisors (see below), whose sum is σ = 8285340. Its totient is φ = 5523552.

The previous prime is 6904433. The next prime is 6904463. The reversal of 6904445 is 5444096.

It is a happy number.

6904445 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 1038361 + 5866084 = 1019^2 + 2422^2 .

It is a cyclic number.

It is not a de Polignac number, because 6904445 - 2¹⁸ = 6642301 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690440 + ... + 690449.

It is an arithmetic number, because the mean of its divisors is an integer number (2071335).

Almost surely, 2^6904445 is an apocalyptic number.

It is an amenable number.

6904445 is a deficient number, since it is larger than the sum of its proper divisors (1380895).

6904445 is a wasteful number, since it uses less digits than its factorization.

6904445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380894.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 6904445 is about 2627.6310623830. The cubic root of 6904445 is about 190.4186980701.

The spelling of 6904445 in words is "six million, nine hundred four thousand, four hundred forty-five".