46909 has 4 divisors (see below), whose sum is σ = 47740. Its totient is φ = 46080.

The previous prime is 46901. The next prime is 46919. The reversal of 46909 is 90964.

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 8100 + 38809 = 90^2 + 197^2 .

It is a cyclic number.

It is not a de Polignac number, because 46909 - 2³ = 46901 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46901) 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, 324 + ... + 445.

It is an arithmetic number, because the mean of its divisors is an integer number (11935).

2⁴⁶⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

46909 is a deficient number, since it is larger than the sum of its proper divisors (831).

46909 is an equidigital number, since it uses as much as digits as its factorization.

46909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 46909 is about 216.5848563497. The cubic root of 46909 is about 36.0649547482.

It can be divided in two parts, 46 and 909, that multiplied together give a palindrome (41814).

The spelling of 46909 in words is "forty-six thousand, nine hundred nine".