289120379 has 2 divisors, whose sum is σ = 289120380. Its totient is φ = 289120378.

The previous prime is 289120357. The next prime is 289120399. The reversal of 289120379 is 973021982.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-289120379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (289120399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144560189 + 144560190.

It is an arithmetic number, because the mean of its divisors is an integer number (144560190).

Almost surely, 2^289120379 is an apocalyptic number.

289120379 is a deficient number, since it is larger than the sum of its proper divisors (1).

289120379 is an equidigital number, since it uses as much as digits as its factorization.

289120379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 289120379 is about 17003.5401902074. The cubic root of 289120379 is about 661.2406866159.

The spelling of 289120379 in words is "two hundred eighty-nine million, one hundred twenty thousand, three hundred seventy-nine".