1679032445 has 4 divisors (see below), whose sum is σ = 2014838940. Its totient is φ = 1343225952.

The previous prime is 1679032441. The next prime is 1679032469. The reversal of 1679032445 is 5442309761.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1026689764 + 652342681 = 32042^2 + 25541^2 .

It is a cyclic number.

It is not a de Polignac number, because 1679032445 - 2² = 1679032441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1679032441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167903240 + ... + 167903249.

It is an arithmetic number, because the mean of its divisors is an integer number (503709735).

Almost surely, 2^1679032445 is an apocalyptic number.

It is an amenable number.

1679032445 is a deficient number, since it is larger than the sum of its proper divisors (335806495).

1679032445 is an equidigital number, since it uses as much as digits as its factorization.

1679032445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335806494.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 1679032445 is about 40975.9984015033. The cubic root of 1679032445 is about 1188.5561296073.

The spelling of 1679032445 in words is "one billion, six hundred seventy-nine million, thirty-two thousand, four hundred forty-five".