909746213 has 2 divisors, whose sum is σ = 909746214. Its totient is φ = 909746212.

The previous prime is 909746203. The next prime is 909746263. The reversal of 909746213 is 312647909.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 843437764 + 66308449 = 29042^2 + 8143^2 .

It is a cyclic number.

It is not a de Polignac number, because 909746213 - 2²⁶ = 842637349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (909746203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454873106 + 454873107.

It is an arithmetic number, because the mean of its divisors is an integer number (454873107).

Almost surely, 2^909746213 is an apocalyptic number.

It is an amenable number.

909746213 is a deficient number, since it is larger than the sum of its proper divisors (1).

909746213 is an equidigital number, since it uses as much as digits as its factorization.

909746213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 909746213 is about 30161.9994861083. Note that the first 3 decimals coincide. The cubic root of 909746213 is about 968.9620146828.

The spelling of 909746213 in words is "nine hundred nine million, seven hundred forty-six thousand, two hundred thirteen".