905541673 has 2 divisors, whose sum is σ = 905541674. Its totient is φ = 905541672.

The previous prime is 905541667. The next prime is 905541697. The reversal of 905541673 is 376145509.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 899820009 + 5721664 = 29997^2 + 2392^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-905541673 is a prime.

It is not a weakly prime, because it can be changed into another prime (905541613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452770836 + 452770837.

It is an arithmetic number, because the mean of its divisors is an integer number (452770837).

Almost surely, 2^905541673 is an apocalyptic number.

It is an amenable number.

905541673 is a deficient number, since it is larger than the sum of its proper divisors (1).

905541673 is an equidigital number, since it uses as much as digits as its factorization.

905541673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 905541673 is about 30092.2194761370. The cubic root of 905541673 is about 967.4669706312.

The spelling of 905541673 in words is "nine hundred five million, five hundred forty-one thousand, six hundred seventy-three".