80289679 has 2 divisors, whose sum is σ = 80289680. Its totient is φ = 80289678.

The previous prime is 80289653. The next prime is 80289733. The reversal of 80289679 is 97698208.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80289679 - 2¹⁹ = 79765391 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80289379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40144839 + 40144840.

It is an arithmetic number, because the mean of its divisors is an integer number (40144840).

Almost surely, 2^80289679 is an apocalyptic number.

80289679 is a deficient number, since it is larger than the sum of its proper divisors (1).

80289679 is an equidigital number, since it uses as much as digits as its factorization.

80289679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 80289679 is about 8960.4508257118. The cubic root of 80289679 is about 431.4063902721.

The spelling of 80289679 in words is "eighty million, two hundred eighty-nine thousand, six hundred seventy-nine".