947893 has 2 divisors, whose sum is σ = 947894. Its totient is φ = 947892.

The previous prime is 947873. The next prime is 947911. The reversal of 947893 is 398749.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 734449 + 213444 = 857^2 + 462^2 .

It is a cyclic number.

It is not a de Polignac number, because 947893 - 2⁵ = 947861 is a prime.

It is a super-2 number, since 2×947893² = 1797002278898, which contains 22 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (947803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473946 + 473947.

It is an arithmetic number, because the mean of its divisors is an integer number (473947).

2⁹⁴⁷⁸⁹³ is an apocalyptic number.

It is an amenable number.

947893 is a deficient number, since it is larger than the sum of its proper divisors (1).

947893 is an equidigital number, since it uses as much as digits as its factorization.

947893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 947893 is about 973.5979663085. The cubic root of 947893 is about 98.2320269186.

The spelling of 947893 in words is "nine hundred forty-seven thousand, eight hundred ninety-three".