947249 has 4 divisors (see below), whose sum is σ = 949620. Its totient is φ = 944880.

The previous prime is 947239. The next prime is 947263. The reversal of 947249 is 942749.

947249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 283024 + 664225 = 532^2 + 815^2 .

It is a cyclic number.

It is not a de Polignac number, because 947249 - 2⁸ = 946993 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 947249.

It is not an unprimeable number, because it can be changed into a prime (947239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422 + ... + 1439.

It is an arithmetic number, because the mean of its divisors is an integer number (237405).

2⁹⁴⁷²⁴⁹ is an apocalyptic number.

It is an amenable number.

947249 is a deficient number, since it is larger than the sum of its proper divisors (2371).

947249 is a wasteful number, since it uses less digits than its factorization.

947249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2370.

The product of its digits is 18144, while the sum is 35.

The square root of 947249 is about 973.2671781171. The cubic root of 947249 is about 98.2097755473.

The spelling of 947249 in words is "nine hundred forty-seven thousand, two hundred forty-nine".