461669 has 8 divisors (see below), whose sum is σ = 526680. Its totient is φ = 400896.

The previous prime is 461653. The next prime is 461677. The reversal of 461669 is 966164.

It can be written as a sum of positive squares in 4 ways, for example, as 131044 + 330625 = 362^2 + 575^2 .

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 461669 - 2⁴ = 461653 is a prime.

It is a super-2 number, since 2×461669² = 426276531122, 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 (461609) 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, 824 + ... + 1265.

It is an arithmetic number, because the mean of its divisors is an integer number (65835).

2⁴⁶¹⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

461669 is a deficient number, since it is larger than the sum of its proper divisors (65011).

461669 is a wasteful number, since it uses less digits than its factorization.

461669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119.

The product of its digits is 7776, while the sum is 32.

The square root of 461669 is about 679.4622874009. The cubic root of 461669 is about 77.2876741140.

The spelling of 461669 in words is "four hundred sixty-one thousand, six hundred sixty-nine".