696894091 has 2 divisors, whose sum is σ = 696894092. Its totient is φ = 696894090.

The previous prime is 696894083. The next prime is 696894127. The reversal of 696894091 is 190498696.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 696894091 - 2³ = 696894083 is a prime.

It is a super-2 number, since 2×696894091² = 971322748141432562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (696894071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348447045 + 348447046.

It is an arithmetic number, because the mean of its divisors is an integer number (348447046).

Almost surely, 2^696894091 is an apocalyptic number.

696894091 is a deficient number, since it is larger than the sum of its proper divisors (1).

696894091 is an equidigital number, since it uses as much as digits as its factorization.

696894091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 696894091 is about 26398.7516939722. The cubic root of 696894091 is about 886.5888408680.

The spelling of 696894091 in words is "six hundred ninety-six million, eight hundred ninety-four thousand, ninety-one".