164544887 has 8 divisors (see below), whose sum is σ = 187626096. Its totient is φ = 142952832.

The previous prime is 164544871. The next prime is 164544893. The reversal of 164544887 is 788445461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164544887 - 2⁴ = 164544871 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 (164544827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372053 + ... + 372494.

It is an arithmetic number, because the mean of its divisors is an integer number (23453262).

Almost surely, 2^164544887 is an apocalyptic number.

164544887 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

164544887 is a deficient number, since it is larger than the sum of its proper divisors (23081209).

164544887 is a wasteful number, since it uses less digits than its factorization.

164544887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744577.

The product of its digits is 860160, while the sum is 47.

The square root of 164544887 is about 12827.5050964714. The cubic root of 164544887 is about 547.9759066875.

The spelling of 164544887 in words is "one hundred sixty-four million, five hundred forty-four thousand, eight hundred eighty-seven".