109006889 has 2 divisors, whose sum is σ = 109006890. Its totient is φ = 109006888.

The previous prime is 109006879. The next prime is 109006897. The reversal of 109006889 is 988600901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99600400 + 9406489 = 9980^2 + 3067^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109006889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (109006879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54503444 + 54503445.

It is an arithmetic number, because the mean of its divisors is an integer number (54503445).

Almost surely, 2^109006889 is an apocalyptic number.

It is an amenable number.

109006889 is a deficient number, since it is larger than the sum of its proper divisors (1).

109006889 is an equidigital number, since it uses as much as digits as its factorization.

109006889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 109006889 is about 10440.6364269617. The cubic root of 109006889 is about 477.6956814273.

The spelling of 109006889 in words is "one hundred nine million, six thousand, eight hundred eighty-nine".