89448791 has 2 divisors, whose sum is σ = 89448792. Its totient is φ = 89448790.

The previous prime is 89448773. The next prime is 89448797. The reversal of 89448791 is 19784498.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89448791 - 2⁶ = 89448727 is a prime.

It is a super-2 number, since 2×89448791² = 16002172422723362, which contains 22 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 (89448797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44724395 + 44724396.

It is an arithmetic number, because the mean of its divisors is an integer number (44724396).

Almost surely, 2^89448791 is an apocalyptic number.

89448791 is a deficient number, since it is larger than the sum of its proper divisors (1).

89448791 is an equidigital number, since it uses as much as digits as its factorization.

89448791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 50.

The square root of 89448791 is about 9457.7370972131. The cubic root of 89448791 is about 447.2237151043.

The spelling of 89448791 in words is "eighty-nine million, four hundred forty-eight thousand, seven hundred ninety-one".