164808487 has 4 divisors (see below), whose sum is σ = 164874640. Its totient is φ = 164742336.

The previous prime is 164808481. The next prime is 164808491. The reversal of 164808487 is 784808461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 784808461 = 23 ⋅34122107.

It is a cyclic number.

It is not a de Polignac number, because 164808487 - 2¹⁵ = 164775719 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 (164808481) 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, 29187 + ... + 34372.

It is an arithmetic number, because the mean of its divisors is an integer number (41218660).

Almost surely, 2^164808487 is an apocalyptic number.

164808487 is a deficient number, since it is larger than the sum of its proper divisors (66153).

164808487 is an equidigital number, since it uses as much as digits as its factorization.

164808487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66152.

The product of its (nonzero) digits is 344064, while the sum is 46.

The square root of 164808487 is about 12837.7757808742. The cubic root of 164808487 is about 548.2683686941.

The spelling of 164808487 in words is "one hundred sixty-four million, eight hundred eight thousand, four hundred eighty-seven".