94891213 has 2 divisors, whose sum is σ = 94891214. Its totient is φ = 94891212.

The previous prime is 94891201. The next prime is 94891231. The reversal of 94891213 is 31219849.

Together with next prime (94891231) 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., 61748164 + 33143049 = 7858^2 + 5757^2 .

It is a cyclic number.

It is not a de Polignac number, because 94891213 - 2⁹ = 94890701 is a prime.

It is a super-2 number, since 2×94891213² = 18008684609222738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94891513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47445606 + 47445607.

It is an arithmetic number, because the mean of its divisors is an integer number (47445607).

Almost surely, 2^94891213 is an apocalyptic number.

It is an amenable number.

94891213 is a deficient number, since it is larger than the sum of its proper divisors (1).

94891213 is an equidigital number, since it uses as much as digits as its factorization.

94891213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 37.

The square root of 94891213 is about 9741.2120909053. The cubic root of 94891213 is about 456.1160270180.

The spelling of 94891213 in words is "ninety-four million, eight hundred ninety-one thousand, two hundred thirteen".