63697 has 2 divisors, whose sum is σ = 63698. Its totient is φ = 63696.

The previous prime is 63691. The next prime is 63703. The reversal of 63697 is 79636.

It is a balanced prime because it is at equal distance from previous prime (63691) and next prime (63703).

It can be written as a sum of positive squares in only one way, i.e., 38416 + 25281 = 196^2 + 159^2 .

It is a cyclic number.

It is not a de Polignac number, because 63697 - 2³ = 63689 is a prime.

It is a d-powerful number, because it can be written as 6³ + 3² + 6⁶ + 9 + 7⁵ .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 63697.

It is not a weakly prime, because it can be changed into another prime (63691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31848 + 31849.

It is an arithmetic number, because the mean of its divisors is an integer number (31849).

2⁶³⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

63697 is a deficient number, since it is larger than the sum of its proper divisors (1).

63697 is an equidigital number, since it uses as much as digits as its factorization.

63697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 31.

The square root of 63697 is about 252.3826459961. The cubic root of 63697 is about 39.9367751180.

The spelling of 63697 in words is "sixty-three thousand, six hundred ninety-seven".