89548891 has 2 divisors, whose sum is σ = 89548892. Its totient is φ = 89548890.

The previous prime is 89548861. The next prime is 89548909. The reversal of 89548891 is 19884598.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89548891 - 2¹³ = 89540699 is a prime.

It is not a weakly prime, because it can be changed into another prime (89548831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44774445 + 44774446.

It is an arithmetic number, because the mean of its divisors is an integer number (44774446).

Almost surely, 2^89548891 is an apocalyptic number.

89548891 is a deficient number, since it is larger than the sum of its proper divisors (1).

89548891 is an equidigital number, since it uses as much as digits as its factorization.

89548891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 52.

The square root of 89548891 is about 9463.0275810652. The cubic root of 89548891 is about 447.3904786961.

The spelling of 89548891 in words is "eighty-nine million, five hundred forty-eight thousand, eight hundred ninety-one".