949889 has 2 divisors, whose sum is σ = 949890. Its totient is φ = 949888.

The previous prime is 949853. The next prime is 949891. The reversal of 949889 is 988949.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 652864 + 297025 = 808^2 + 545^2 .

It is a cyclic number.

It is not a de Polignac number, because 949889 - 2⁸ = 949633 is a prime.

It is a super-2 number, since 2×949889² = 1804578224642, which contains 22 as substring.

Together with 949891, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (949849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474944 + 474945.

It is an arithmetic number, because the mean of its divisors is an integer number (474945).

2⁹⁴⁹⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

949889 is a deficient number, since it is larger than the sum of its proper divisors (1).

949889 is an equidigital number, since it uses as much as digits as its factorization.

949889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 47.

The square root of 949889 is about 974.6224910190. The cubic root of 949889 is about 98.3009283884.

Subtracting 949889 from its reverse (988949), we obtain a triangular number (39060 = T₂₇₉).

It can be divided in two parts, 94 and 9889, that multiplied together give a triangular number (929566 = T₁₃₆₃).

The spelling of 949889 in words is "nine hundred forty-nine thousand, eight hundred eighty-nine".