89712379 has 2 divisors, whose sum is σ = 89712380. Its totient is φ = 89712378.

The previous prime is 89712323. The next prime is 89712431. The reversal of 89712379 is 97321798.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89712379 - 2⁷ = 89712251 is a prime.

It is not a weakly prime, because it can be changed into another prime (89712079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44856189 + 44856190.

It is an arithmetic number, because the mean of its divisors is an integer number (44856190).

Almost surely, 2^89712379 is an apocalyptic number.

89712379 is a deficient number, since it is larger than the sum of its proper divisors (1).

89712379 is an equidigital number, since it uses as much as digits as its factorization.

89712379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 46.

The square root of 89712379 is about 9471.6618921919. The cubic root of 89712379 is about 447.6625777579.

The spelling of 89712379 in words is "eighty-nine million, seven hundred twelve thousand, three hundred seventy-nine".