164931827 has 4 divisors (see below), whose sum is σ = 172102800. Its totient is φ = 157760856.

The previous prime is 164931769. The next prime is 164931847. The reversal of 164931827 is 728139461.

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

It is a cyclic number.

It is not a de Polignac number, because 164931827 - 2⁶ = 164931763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164931847) 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, 3585452 + ... + 3585497.

It is an arithmetic number, because the mean of its divisors is an integer number (43025700).

Almost surely, 2^164931827 is an apocalyptic number.

164931827 is a deficient number, since it is larger than the sum of its proper divisors (7170973).

164931827 is an equidigital number, since it uses as much as digits as its factorization.

164931827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7170972.

The product of its digits is 72576, while the sum is 41.

The square root of 164931827 is about 12842.5786740826. The cubic root of 164931827 is about 548.4051063088.

The spelling of 164931827 in words is "one hundred sixty-four million, nine hundred thirty-one thousand, eight hundred twenty-seven".