696661843 has 2 divisors, whose sum is σ = 696661844. Its totient is φ = 696661842.

The previous prime is 696661841. The next prime is 696661879. The reversal of 696661843 is 348166696.

696661843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 696661843 - 2¹ = 696661841 is a prime.

Together with 696661841, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (696661841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348330921 + 348330922.

It is an arithmetic number, because the mean of its divisors is an integer number (348330922).

Almost surely, 2^696661843 is an apocalyptic number.

696661843 is a deficient number, since it is larger than the sum of its proper divisors (1).

696661843 is an equidigital number, since it uses as much as digits as its factorization.

696661843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 49.

The square root of 696661843 is about 26394.3524830597. The cubic root of 696661843 is about 886.4903412701.

The spelling of 696661843 in words is "six hundred ninety-six million, six hundred sixty-one thousand, eight hundred forty-three".