947091 has 4 divisors (see below), whose sum is σ = 1262792. Its totient is φ = 631392.

The previous prime is 947083. The next prime is 947119. The reversal of 947091 is 190749.

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

It is not a de Polignac number, because 947091 - 2³ = 947083 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (942091) 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, 157846 + ... + 157851.

It is an arithmetic number, because the mean of its divisors is an integer number (315698).

2⁹⁴⁷⁰⁹¹ is an apocalyptic number.

947091 is a deficient number, since it is larger than the sum of its proper divisors (315701).

947091 is a wasteful number, since it uses less digits than its factorization.

947091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315700.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 947091 is about 973.1860048316. The cubic root of 947091 is about 98.2043148193.

The spelling of 947091 in words is "nine hundred forty-seven thousand, ninety-one".