89021011 has 2 divisors, whose sum is σ = 89021012. Its totient is φ = 89021010.

The previous prime is 89021003. The next prime is 89021033. The reversal of 89021011 is 11012098.

It is an a-pointer prime, because the next prime (89021033) can be obtained adding 89021011 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89021011 - 2³ = 89021003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89025011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44510505 + 44510506.

It is an arithmetic number, because the mean of its divisors is an integer number (44510506).

Almost surely, 2^89021011 is an apocalyptic number.

89021011 is a deficient number, since it is larger than the sum of its proper divisors (1).

89021011 is an equidigital number, since it uses as much as digits as its factorization.

89021011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 89021011 is about 9435.0946471140. The cubic root of 89021011 is about 446.5096411607.

The spelling of 89021011 in words is "eighty-nine million, twenty-one thousand, eleven".