164380587 has 16 divisors (see below), whose sum is σ = 253505280. Its totient is φ = 92799072.

The previous prime is 164380583. The next prime is 164380589. The reversal of 164380587 is 785083461.

It is not a de Polignac number, because 164380587 - 2² = 164380583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164380583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45412 + ... + 48897.

It is an arithmetic number, because the mean of its divisors is an integer number (15844080).

Almost surely, 2^164380587 is an apocalyptic number.

164380587 is a deficient number, since it is larger than the sum of its proper divisors (89124693).

164380587 is an equidigital number, since it uses as much as digits as its factorization.

164380587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94402.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 164380587 is about 12821.0992898425. The cubic root of 164380587 is about 547.7934591583.

The spelling of 164380587 in words is "one hundred sixty-four million, three hundred eighty thousand, five hundred eighty-seven".