947797143 has 8 divisors (see below), whose sum is σ = 1297884528. Its totient is φ = 614787264.

The previous prime is 947797129. The next prime is 947797157. The reversal of 947797143 is 341797749.

It is an interprime number because it is at equal distance from previous prime (947797129) and next prime (947797157).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 947797143 - 2¹⁸ = 947534999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947797163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4269246 + ... + 4269467.

It is an arithmetic number, because the mean of its divisors is an integer number (162235566).

Almost surely, 2^947797143 is an apocalyptic number.

947797143 is a deficient number, since it is larger than the sum of its proper divisors (350087385).

947797143 is a wasteful number, since it uses less digits than its factorization.

947797143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8538753.

The product of its digits is 1333584, while the sum is 51.

The square root of 947797143 is about 30786.3142158979. The cubic root of 947797143 is about 982.2871552351.

The spelling of 947797143 in words is "nine hundred forty-seven million, seven hundred ninety-seven thousand, one hundred forty-three".