904116869 has 2 divisors, whose sum is σ = 904116870. Its totient is φ = 904116868.

The previous prime is 904116859. The next prime is 904116883. The reversal of 904116869 is 968611409.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 618168769 + 285948100 = 24863^2 + 16910^2 .

It is an emirp because it is prime and its reverse (968611409) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 904116869 - 2⁸ = 904116613 is a prime.

It is a super-2 number, since 2×904116869² = 1634854625620726322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (904116859) 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, 452058434 + 452058435.

It is an arithmetic number, because the mean of its divisors is an integer number (452058435).

Almost surely, 2^904116869 is an apocalyptic number.

It is an amenable number.

904116869 is a deficient number, since it is larger than the sum of its proper divisors (1).

904116869 is an equidigital number, since it uses as much as digits as its factorization.

904116869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 904116869 is about 30068.5361964962. The cubic root of 904116869 is about 966.9592912876.

The spelling of 904116869 in words is "nine hundred four million, one hundred sixteen thousand, eight hundred sixty-nine".