6469661 has 4 divisors (see below), whose sum is σ = 7057824. Its totient is φ = 5881500.

The previous prime is 6469649. The next prime is 6469667. The reversal of 6469661 is 1669646.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6469661 - 2¹⁸ = 6207517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6469667) 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, 294065 + ... + 294086.

It is an arithmetic number, because the mean of its divisors is an integer number (1764456).

Almost surely, 2^6469661 is an apocalyptic number.

It is an amenable number.

6469661 is a deficient number, since it is larger than the sum of its proper divisors (588163).

6469661 is a wasteful number, since it uses less digits than its factorization.

6469661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588162.

The product of its digits is 46656, while the sum is 38.

The square root of 6469661 is about 2543.5528301964. The cubic root of 6469661 is about 186.3347442529.

The spelling of 6469661 in words is "six million, four hundred sixty-nine thousand, six hundred sixty-one".