418961 has 2 divisors, whose sum is σ = 418962.
Its totient is φ = 418960.
The previous prime is 418939. The next prime is 418981. The reversal of 418961 is 169814.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 414736 + 4225 = 644^2 + 65^2
It is a cyclic number.
It is not a de Polignac number, because 418961 - 218 = 156817 is a prime.
It is a Sophie Germain prime.
It is a Chen prime.
It is an alternating number because its digits alternate between even and odd.
It is a Curzon number.
It is not a weakly prime, because it can be changed into another prime (418921) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209480 + 209481.
It is an arithmetic number, because the mean of its divisors is an integer number (209481).
2418961 is an apocalyptic number.
It is an amenable number.
418961 is a deficient number, since it is larger than the sum of its proper divisors (1).
418961 is an equidigital number, since it uses as much as digits as its factorization.
418961 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1728, while the sum is 29.
The square root of 418961 is about 647.2719675685.
The cubic root of 418961 is about 74.8269194005.
The spelling of 418961 in words is "four hundred eighteen thousand, nine hundred sixty-one".