947773243 has 2 divisors, whose sum is σ = 947773244. Its totient is φ = 947773242.

The previous prime is 947773159. The next prime is 947773247. The reversal of 947773243 is 342377749.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-947773243 is a prime.

It is a super-3 number, since 3×947773243³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 947773193 and 947773202.

It is not a weakly prime, because it can be changed into another prime (947773247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473886621 + 473886622.

It is an arithmetic number, because the mean of its divisors is an integer number (473886622).

Almost surely, 2^947773243 is an apocalyptic number.

947773243 is a deficient number, since it is larger than the sum of its proper divisors (1).

947773243 is an equidigital number, since it uses as much as digits as its factorization.

947773243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 889056, while the sum is 46.

The square root of 947773243 is about 30785.9260539617. The cubic root of 947773243 is about 982.2788985947.

The spelling of 947773243 in words is "nine hundred forty-seven million, seven hundred seventy-three thousand, two hundred forty-three".