489670669 has 4 divisors (see below), whose sum is σ = 518474844. Its totient is φ = 460866496.

The previous prime is 489670663. The next prime is 489670693. The reversal of 489670669 is 966076984.

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 456377769 + 33292900 = 21363^2 + 5770^2 .

It is a cyclic number.

It is not a de Polignac number, because 489670669 - 2³ = 489670661 is a prime.

It is a super-2 number, since 2×489670669² = 479554728157815122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489670661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14402062 + ... + 14402095.

It is an arithmetic number, because the mean of its divisors is an integer number (129618711).

Almost surely, 2^489670669 is an apocalyptic number.

It is an amenable number.

489670669 is a deficient number, since it is larger than the sum of its proper divisors (28804175).

489670669 is a wasteful number, since it uses less digits than its factorization.

489670669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28804174.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The square root of 489670669 is about 22128.5035418123. The cubic root of 489670669 is about 788.1968537067.

The spelling of 489670669 in words is "four hundred eighty-nine million, six hundred seventy thousand, six hundred sixty-nine".