89739988379 has 2 divisors, whose sum is σ = 89739988380. Its totient is φ = 89739988378.

The previous prime is 89739988319. The next prime is 89739988381. The reversal of 89739988379 is 97388993798.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89739988379 - 2³² = 85445021083 is a prime.

Together with 89739988381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89739988319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44869994189 + 44869994190.

It is an arithmetic number, because the mean of its divisors is an integer number (44869994190).

Almost surely, 2^89739988379 is an apocalyptic number.

89739988379 is a deficient number, since it is larger than the sum of its proper divisors (1).

89739988379 is an equidigital number, since it uses as much as digits as its factorization.

89739988379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1481421312, while the sum is 80.

The spelling of 89739988379 in words is "eighty-nine billion, seven hundred thirty-nine million, nine hundred eighty-eight thousand, three hundred seventy-nine".