1679934161 has 2 divisors, whose sum is σ = 1679934162. Its totient is φ = 1679934160.

The previous prime is 1679934143. The next prime is 1679934211. The reversal of 1679934161 is 1614399761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1674364561 + 5569600 = 40919^2 + 2360^2 .

It is a cyclic number.

It is not a de Polignac number, because 1679934161 - 2⁶ = 1679934097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1679934461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 839967080 + 839967081.

It is an arithmetic number, because the mean of its divisors is an integer number (839967081).

Almost surely, 2^1679934161 is an apocalyptic number.

It is an amenable number.

1679934161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1679934161 is an equidigital number, since it uses as much as digits as its factorization.

1679934161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 47.

The square root of 1679934161 is about 40986.9999024081. Note that the first 4 decimals coincide. The cubic root of 1679934161 is about 1188.7688609102.

The spelling of 1679934161 in words is "one billion, six hundred seventy-nine million, nine hundred thirty-four thousand, one hundred sixty-one".