164886963 has 4 divisors (see below), whose sum is σ = 219849288. Its totient is φ = 109924640.

The previous prime is 164886947. The next prime is 164886973. The reversal of 164886963 is 369688461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 369688461 = 3 ⋅123229487.

It is a cyclic number.

It is not a de Polignac number, because 164886963 - 2⁴ = 164886947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164886973) 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, 27481158 + ... + 27481163.

It is an arithmetic number, because the mean of its divisors is an integer number (54962322).

Almost surely, 2^164886963 is an apocalyptic number.

164886963 is a deficient number, since it is larger than the sum of its proper divisors (54962325).

164886963 is an equidigital number, since it uses as much as digits as its factorization.

164886963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54962324.

The product of its digits is 1492992, while the sum is 51.

The square root of 164886963 is about 12840.8318655763. The cubic root of 164886963 is about 548.3553769179.

The spelling of 164886963 in words is "one hundred sixty-four million, eight hundred eighty-six thousand, nine hundred sixty-three".