947923 has 4 divisors (see below), whose sum is σ = 980640. Its totient is φ = 915208.

The previous prime is 947917. The next prime is 947927. The reversal of 947923 is 329749.

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

It is a cyclic number.

It is not a de Polignac number, because 947923 - 2⁹ = 947411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947927) 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 in 3 ways as a sum of consecutive naturals, for example, 16315 + ... + 16372.

It is an arithmetic number, because the mean of its divisors is an integer number (245160).

2⁹⁴⁷⁹²³ is an apocalyptic number.

947923 is a deficient number, since it is larger than the sum of its proper divisors (32717).

947923 is a wasteful number, since it uses less digits than its factorization.

947923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32716.

The product of its digits is 13608, while the sum is 34.

The square root of 947923 is about 973.6133729566. The cubic root of 947923 is about 98.2330632275.

The spelling of 947923 in words is "nine hundred forty-seven thousand, nine hundred twenty-three".