696261191 has 2 divisors, whose sum is σ = 696261192. Its totient is φ = 696261190.

The previous prime is 696261179. The next prime is 696261193. The reversal of 696261191 is 191162696.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-696261191 is a prime.

Together with 696261193, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_36069629 and since 696261191 and 36069629 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (696261193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348130595 + 348130596.

It is an arithmetic number, because the mean of its divisors is an integer number (348130596).

Almost surely, 2^696261191 is an apocalyptic number.

696261191 is a deficient number, since it is larger than the sum of its proper divisors (1).

696261191 is an equidigital number, since it uses as much as digits as its factorization.

696261191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 41.

The square root of 696261191 is about 26386.7616618637. The cubic root of 696261191 is about 886.3203677310.

The spelling of 696261191 in words is "six hundred ninety-six million, two hundred sixty-one thousand, one hundred ninety-one".