934989191 has 2 divisors, whose sum is σ = 934989192. Its totient is φ = 934989190.

The previous prime is 934989173. The next prime is 934989193. The reversal of 934989191 is 191989439.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 934989191 - 2¹⁸ = 934727047 is a prime.

It is a super-3 number, since 3×934989191³ (a number of 28 digits) contains 333 as substring.

Together with 934989193, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (934989193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 467494595 + 467494596.

It is an arithmetic number, because the mean of its divisors is an integer number (467494596).

Almost surely, 2^934989191 is an apocalyptic number.

934989191 is a deficient number, since it is larger than the sum of its proper divisors (1).

934989191 is an equidigital number, since it uses as much as digits as its factorization.

934989191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 629856, while the sum is 53.

The square root of 934989191 is about 30577.5929562809. The cubic root of 934989191 is about 977.8423971292.

The spelling of 934989191 in words is "nine hundred thirty-four million, nine hundred eighty-nine thousand, one hundred ninety-one".