461566 has 8 divisors (see below), whose sum is σ = 791280. Its totient is φ = 197808.

The previous prime is 461561. The next prime is 461569. The reversal of 461566 is 665164.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461561) by changing a digit.

461566 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16471 + ... + 16498.

It is an arithmetic number, because the mean of its divisors is an integer number (98910).

2⁴⁶¹⁵⁶⁶ is an apocalyptic number.

461566 is a deficient number, since it is larger than the sum of its proper divisors (329714).

461566 is a wasteful number, since it uses less digits than its factorization.

461566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32978.

The product of its digits is 4320, while the sum is 28.

The square root of 461566 is about 679.3864879434. The cubic root of 461566 is about 77.2819259679.

It can be divided in two parts, 4615 and 66, that multiplied together give a triangular number (304590 = T₇₈₀).

The spelling of 461566 in words is "four hundred sixty-one thousand, five hundred sixty-six".