1679934169 has 9 divisors (see below), whose sum is σ = 1785307231. Its totient is φ = 1580458720.

The previous prime is 1679934161. The next prime is 1679934211. The reversal of 1679934169 is 9614399761.

It is a happy number.

The square root of 1679934169 is 40987.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1307907225 + 372026944 = 36165^2 + 19288^2 .

It is not a de Polignac number, because 1679934169 - 2³ = 1679934161 is a prime.

It is a super-2 number, since 2×1679934169² = 5644357624347441122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1679934161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 695574 + ... + 697984.

Almost surely, 2^1679934169 is an apocalyptic number.

1679934169 is the 40987-th square number.

1679934169 is the 20494-th centered octagonal number.

It is an amenable number.

1679934169 is a deficient number, since it is larger than the sum of its proper divisors (105373062).

1679934169 is an frugal number, since it uses more digits than its factorization.

1679934169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4856 (or 2428 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 55.

The cubic root of 1679934169 is about 1188.7688627972.

The spelling of 1679934169 in words is "one billion, six hundred seventy-nine million, nine hundred thirty-four thousand, one hundred sixty-nine".