947297249 has 8 divisors (see below), whose sum is σ = 967878720. Its totient is φ = 926816176.

The previous prime is 947297237. The next prime is 947297257. The reversal of 947297249 is 942792749.

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

It is a cyclic number.

It is not a de Polignac number, because 947297249 - 2⁴ = 947297233 is a prime.

It is a super-3 number, since 3×947297249³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 947297249.

It is not an unprimeable number, because it can be changed into a prime (947291249) 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 in 7 ways as a sum of consecutive naturals, for example, 5867 + ... + 43920.

It is an arithmetic number, because the mean of its divisors is an integer number (120984840).

Almost surely, 2^947297249 is an apocalyptic number.

It is an amenable number.

947297249 is a deficient number, since it is larger than the sum of its proper divisors (20581471).

947297249 is a wasteful number, since it uses less digits than its factorization.

947297249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50199.

The product of its digits is 2286144, while the sum is 53.

The square root of 947297249 is about 30778.1943752391. The cubic root of 947297249 is about 982.1144298745.

The spelling of 947297249 in words is "nine hundred forty-seven million, two hundred ninety-seven thousand, two hundred forty-nine".