6469561 has 8 divisors (see below), whose sum is σ = 7593920. Its totient is φ = 5395248.

The previous prime is 6469559. The next prime is 6469577. The reversal of 6469561 is 1659646.

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 6469561 - 2¹ = 6469559 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6469561.

It is not an unprimeable number, because it can be changed into a prime (6469501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12231 + ... + 12748.

It is an arithmetic number, because the mean of its divisors is an integer number (949240).

Almost surely, 2^6469561 is an apocalyptic number.

It is an amenable number.

6469561 is a deficient number, since it is larger than the sum of its proper divisors (1124359).

6469561 is a wasteful number, since it uses less digits than its factorization.

6469561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25023.

The product of its digits is 38880, while the sum is 37.

The square root of 6469561 is about 2543.5331725771. The cubic root of 6469561 is about 186.3337842041. Note that the first 3 decimals are identical.

The spelling of 6469561 in words is "six million, four hundred sixty-nine thousand, five hundred sixty-one".