895992989 has 2 divisors, whose sum is σ = 895992990. Its totient is φ = 895992988.

The previous prime is 895992959. The next prime is 895993039. The reversal of 895992989 is 989299598.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 894907225 + 1085764 = 29915^2 + 1042^2 .

It is a cyclic number.

It is not a de Polignac number, because 895992989 - 2⁸ = 895992733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (895992919) 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, 447996494 + 447996495.

It is an arithmetic number, because the mean of its divisors is an integer number (447996495).

Almost surely, 2^895992989 is an apocalyptic number.

It is an amenable number.

895992989 is a deficient number, since it is larger than the sum of its proper divisors (1).

895992989 is an equidigital number, since it uses as much as digits as its factorization.

895992989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37791360, while the sum is 68.

The square root of 895992989 is about 29933.1419834270. The cubic root of 895992989 is about 964.0543911535.

The spelling of 895992989 in words is "eight hundred ninety-five million, nine hundred ninety-two thousand, nine hundred eighty-nine".