909086473 has 2 divisors, whose sum is σ = 909086474. Its totient is φ = 909086472.

The previous prime is 909086471. The next prime is 909086491. The reversal of 909086473 is 374680909.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 904625929 + 4460544 = 30077^2 + 2112^2 .

It is an emirp because it is prime and its reverse (374680909) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 909086473 - 2¹ = 909086471 is a prime.

Together with 909086471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (909086471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454543236 + 454543237.

It is an arithmetic number, because the mean of its divisors is an integer number (454543237).

Almost surely, 2^909086473 is an apocalyptic number.

It is an amenable number.

909086473 is a deficient number, since it is larger than the sum of its proper divisors (1).

909086473 is an equidigital number, since it uses as much as digits as its factorization.

909086473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 909086473 is about 30151.0608934412. The cubic root of 909086473 is about 968.7277304461.

The spelling of 909086473 in words is "nine hundred nine million, eighty-six thousand, four hundred seventy-three".