89257879 has 2 divisors, whose sum is σ = 89257880. Its totient is φ = 89257878.

The previous prime is 89257807. The next prime is 89257891. The reversal of 89257879 is 97875298.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89257879 - 2¹³ = 89249687 is a prime.

It is a super-3 number, since 3×89257879³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89257279) 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, 44628939 + 44628940.

It is an arithmetic number, because the mean of its divisors is an integer number (44628940).

Almost surely, 2^89257879 is an apocalyptic number.

89257879 is a deficient number, since it is larger than the sum of its proper divisors (1).

89257879 is an equidigital number, since it uses as much as digits as its factorization.

89257879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 55.

The square root of 89257879 is about 9447.6388055429. The cubic root of 89257879 is about 446.9053162082.

The spelling of 89257879 in words is "eighty-nine million, two hundred fifty-seven thousand, eight hundred seventy-nine".