696817493 has 2 divisors, whose sum is σ = 696817494. Its totient is φ = 696817492.

The previous prime is 696817463. The next prime is 696817543. The reversal of 696817493 is 394718696.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 402283249 + 294534244 = 20057^2 + 17162^2 .

It is a cyclic number.

It is not a de Polignac number, because 696817493 - 2²⁰ = 695768917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (696817463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348408746 + 348408747.

It is an arithmetic number, because the mean of its divisors is an integer number (348408747).

Almost surely, 2^696817493 is an apocalyptic number.

It is an amenable number.

696817493 is a deficient number, since it is larger than the sum of its proper divisors (1).

696817493 is an equidigital number, since it uses as much as digits as its factorization.

696817493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 53.

The square root of 696817493 is about 26397.3008658082. The cubic root of 696817493 is about 886.5563570127.

The spelling of 696817493 in words is "six hundred ninety-six million, eight hundred seventeen thousand, four hundred ninety-three".