164479897 has 2 divisors, whose sum is σ = 164479898. Its totient is φ = 164479896.

The previous prime is 164479891. The next prime is 164479901. The reversal of 164479897 is 798974461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83101456 + 81378441 = 9116^2 + 9021^2 .

It is a cyclic number.

It is not a de Polignac number, because 164479897 - 2¹¹ = 164477849 is a prime.

It is not a weakly prime, because it can be changed into another prime (164479891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82239948 + 82239949.

It is an arithmetic number, because the mean of its divisors is an integer number (82239949).

Almost surely, 2^164479897 is an apocalyptic number.

It is an amenable number.

164479897 is a deficient number, since it is larger than the sum of its proper divisors (1).

164479897 is an equidigital number, since it uses as much as digits as its factorization.

164479897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 55.

The square root of 164479897 is about 12824.9716179023. The cubic root of 164479897 is about 547.9037528323.

The spelling of 164479897 in words is "one hundred sixty-four million, four hundred seventy-nine thousand, eight hundred ninety-seven".