94891109 has 2 divisors, whose sum is σ = 94891110. Its totient is φ = 94891108.

The previous prime is 94891091. The next prime is 94891129. The reversal of 94891109 is 90119849.

Together with previous prime (94891091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70930084 + 23961025 = 8422^2 + 4895^2 .

It is a cyclic number.

It is not a de Polignac number, because 94891109 - 2⁸ = 94890853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94891129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47445554 + 47445555.

It is an arithmetic number, because the mean of its divisors is an integer number (47445555).

Almost surely, 2^94891109 is an apocalyptic number.

It is an amenable number.

94891109 is a deficient number, since it is larger than the sum of its proper divisors (1).

94891109 is an equidigital number, since it uses as much as digits as its factorization.

94891109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 94891109 is about 9741.2067527591. The cubic root of 94891109 is about 456.1158603848.

The spelling of 94891109 in words is "ninety-four million, eight hundred ninety-one thousand, one hundred nine".