89244979 has 2 divisors, whose sum is σ = 89244980. Its totient is φ = 89244978.

The previous prime is 89244959. The next prime is 89244997. The reversal of 89244979 is 97944298.

It is a happy number.

Together with next prime (89244997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89244979 - 2¹⁷ = 89113907 is a prime.

It is not a weakly prime, because it can be changed into another prime (89244959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44622489 + 44622490.

It is an arithmetic number, because the mean of its divisors is an integer number (44622490).

Almost surely, 2^89244979 is an apocalyptic number.

89244979 is a deficient number, since it is larger than the sum of its proper divisors (1).

89244979 is an equidigital number, since it uses as much as digits as its factorization.

89244979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 52.

The square root of 89244979 is about 9446.9560706081. The cubic root of 89244979 is about 446.8837854989.

The spelling of 89244979 in words is "eighty-nine million, two hundred forty-four thousand, nine hundred seventy-nine".