164486879 has 2 divisors, whose sum is σ = 164486880. Its totient is φ = 164486878.

The previous prime is 164486783. The next prime is 164486891. The reversal of 164486879 is 978684461.

It is a strong prime.

It is an emirp because it is prime and its reverse (978684461) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164486879 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164486879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164486779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82243439 + 82243440.

It is an arithmetic number, because the mean of its divisors is an integer number (82243440).

Almost surely, 2^164486879 is an apocalyptic number.

164486879 is a deficient number, since it is larger than the sum of its proper divisors (1).

164486879 is an equidigital number, since it uses as much as digits as its factorization.

164486879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 53.

The square root of 164486879 is about 12825.2438183451. The cubic root of 164486879 is about 547.9115053702.

The spelling of 164486879 in words is "one hundred sixty-four million, four hundred eighty-six thousand, eight hundred seventy-nine".