164537847 has 6 divisors (see below), whose sum is σ = 237665792. Its totient is φ = 109691892.

The previous prime is 164537833. The next prime is 164537881. The reversal of 164537847 is 748735461.

It is not a de Polignac number, because 164537847 - 2⁷ = 164537719 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 (164537887) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9140983 + ... + 9141000.

Almost surely, 2^164537847 is an apocalyptic number.

164537847 is a deficient number, since it is larger than the sum of its proper divisors (73127945).

164537847 is a wasteful number, since it uses less digits than its factorization.

164537847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18281989 (or 18281986 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 164537847 is about 12827.2306831989. The cubic root of 164537847 is about 547.9680915852.

The spelling of 164537847 in words is "one hundred sixty-four million, five hundred thirty-seven thousand, eight hundred forty-seven".