6469445 has 8 divisors (see below), whose sum is σ = 7910136. Its totient is φ = 5077696.

The previous prime is 6469439. The next prime is 6469457. The reversal of 6469445 is 5449646.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 481636 + 5987809 = 694^2 + 2447^2 .

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 6469445 - 2⁴ = 6469429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6469399 and 6469408.

It is a congruent number.

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, 11942 + ... + 12471.

It is an arithmetic number, because the mean of its divisors is an integer number (988767).

Almost surely, 2^6469445 is an apocalyptic number.

It is an amenable number.

6469445 is a deficient number, since it is larger than the sum of its proper divisors (1440691).

6469445 is a wasteful number, since it uses less digits than its factorization.

6469445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24471.

The product of its digits is 103680, while the sum is 38.

The square root of 6469445 is about 2543.5103695484. The cubic root of 6469445 is about 186.3326705351.

The spelling of 6469445 in words is "six million, four hundred sixty-nine thousand, four hundred forty-five".