164770847 has 4 divisors (see below), whose sum is σ = 164907456. Its totient is φ = 164634240.

The previous prime is 164770829. The next prime is 164770849. The reversal of 164770847 is 748077461.

It is a happy number.

164770847 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 is a cyclic number.

It is not a de Polignac number, because 164770847 - 2⁸ = 164770591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164770798 and 164770807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164770849) 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, 66479 + ... + 68912.

It is an arithmetic number, because the mean of its divisors is an integer number (41226864).

Almost surely, 2^164770847 is an apocalyptic number.

164770847 is a deficient number, since it is larger than the sum of its proper divisors (136609).

164770847 is a wasteful number, since it uses less digits than its factorization.

164770847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136608.

The product of its (nonzero) digits is 263424, while the sum is 44.

The square root of 164770847 is about 12836.3097111280. The cubic root of 164770847 is about 548.2266265220.

The spelling of 164770847 in words is "one hundred sixty-four million, seven hundred seventy thousand, eight hundred forty-seven".