164764927 has 4 divisors (see below), whose sum is σ = 165454560. Its totient is φ = 164075296.

The previous prime is 164764889. The next prime is 164764933. The reversal of 164764927 is 729467461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164764927 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 (164764967) 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 3 ways as a sum of consecutive naturals, for example, 344458 + ... + 344935.

It is an arithmetic number, because the mean of its divisors is an integer number (41363640).

Almost surely, 2^164764927 is an apocalyptic number.

164764927 is a deficient number, since it is larger than the sum of its proper divisors (689633).

164764927 is an equidigital number, since it uses as much as digits as its factorization.

164764927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689632.

The product of its digits is 508032, while the sum is 46.

The square root of 164764927 is about 12836.0791131872. The cubic root of 164764927 is about 548.2200607560.

The spelling of 164764927 in words is "one hundred sixty-four million, seven hundred sixty-four thousand, nine hundred twenty-seven".