89383979 has 2 divisors, whose sum is σ = 89383980. Its totient is φ = 89383978.

The previous prime is 89383949. The next prime is 89383981. The reversal of 89383979 is 97938398.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89383979 - 2¹² = 89379883 is a prime.

It is a Sophie Germain prime.

Together with 89383981, 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 (89383919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44691989 + 44691990.

It is an arithmetic number, because the mean of its divisors is an integer number (44691990).

Almost surely, 2^89383979 is an apocalyptic number.

89383979 is a deficient number, since it is larger than the sum of its proper divisors (1).

89383979 is an equidigital number, since it uses as much as digits as its factorization.

89383979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 56.

The square root of 89383979 is about 9454.3100753043. The cubic root of 89383979 is about 447.1156738940.

The spelling of 89383979 in words is "eighty-nine million, three hundred eighty-three thousand, nine hundred seventy-nine".