947158089 has 4 divisors (see below), whose sum is σ = 1262877456. Its totient is φ = 631438724.

The previous prime is 947158081. The next prime is 947158099. The reversal of 947158089 is 980851749.

947158089 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 947158089 - 2³ = 947158081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (947158081) 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, 157859679 + ... + 157859684.

It is an arithmetic number, because the mean of its divisors is an integer number (315719364).

Almost surely, 2^947158089 is an apocalyptic number.

It is an amenable number.

947158089 is a deficient number, since it is larger than the sum of its proper divisors (315719367).

947158089 is a wasteful number, since it uses less digits than its factorization.

947158089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315719366.

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 947158089 is about 30775.9336007862. The cubic root of 947158089 is about 982.0663359465.

The spelling of 947158089 in words is "nine hundred forty-seven million, one hundred fifty-eight thousand, eighty-nine".