406870201 has 2 divisors, whose sum is σ = 406870202. Its totient is φ = 406870200.

The previous prime is 406870193. The next prime is 406870213. The reversal of 406870201 is 102078604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 392040000 + 14830201 = 19800^2 + 3851^2 .

It is a cyclic number.

It is not a de Polignac number, because 406870201 - 2³ = 406870193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 406870201.

It is not a weakly prime, because it can be changed into another prime (406870001) 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 as a sum of consecutive naturals, namely, 203435100 + 203435101.

It is an arithmetic number, because the mean of its divisors is an integer number (203435101).

Almost surely, 2^406870201 is an apocalyptic number.

It is an amenable number.

406870201 is a deficient number, since it is larger than the sum of its proper divisors (1).

406870201 is an equidigital number, since it uses as much as digits as its factorization.

406870201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 406870201 is about 20171.0237965255. The cubic root of 406870201 is about 741.0007163478. Note that the first 3 decimals are identical.

The spelling of 406870201 in words is "four hundred six million, eight hundred seventy thousand, two hundred one".