164641627 has 2 divisors, whose sum is σ = 164641628. Its totient is φ = 164641626.

The previous prime is 164641621. The next prime is 164641637. The reversal of 164641627 is 726146461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164641627 - 2³ = 164641619 is a prime.

It is not a weakly prime, because it can be changed into another prime (164641621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82320813 + 82320814.

It is an arithmetic number, because the mean of its divisors is an integer number (82320814).

Almost surely, 2^164641627 is an apocalyptic number.

164641627 is a deficient number, since it is larger than the sum of its proper divisors (1).

164641627 is an equidigital number, since it uses as much as digits as its factorization.

164641627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 37.

The square root of 164641627 is about 12831.2753458103. The cubic root of 164641627 is about 548.0832751686.

The spelling of 164641627 in words is "one hundred sixty-four million, six hundred forty-one thousand, six hundred twenty-seven".