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46661 = 291609

46661 has 4 divisors (see below), whose sum is σ = 48300. Its totient is φ = 45024.

The previous prime is 46649. The next prime is 46663. The reversal of 46661 is 16664.

It can be divided in two parts, 46 and 661, that added together give a palindrome (707).

46661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 37636 + 9025 = 194^2 + 95^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-46661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 46661.

It is not an unprimeable number, because it can be changed into a prime (46663) 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, 776 + ... + 833.

It is an arithmetic number, because the mean of its divisors is an integer number (12075).

46661 is a Friedman number, since it can be written as 6^6+4+1^6, using all its digits and the basic arithmetic operations.

246661 is an apocalyptic number.

It is an amenable number.

46661 is a deficient number, since it is larger than the sum of its proper divisors (1639).

46661 is a wasteful number, since it uses less digits than its factorization.

46661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638.

The product of its digits is 864, while the sum is 23.

The square root of 46661 is about 216.0115737640. The cubic root of 46661 is about 36.0012859623.

The spelling of 46661 in words is "forty-six thousand, six hundred sixty-one".

Divisors: 1 29 1609 46661