53697 has 8 divisors (see below), whose sum is σ = 81856. Its totient is φ = 30672.

The previous prime is 53693. The next prime is 53699. The reversal of 53697 is 79635.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53697 - 2² = 53693 is a prime.

It is a Duffinian number.

53697 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 53697.

It is not an unprimeable number, because it can be changed into a prime (53693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1258 + ... + 1299.

It is an arithmetic number, because the mean of its divisors is an integer number (10232).

2⁵³⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

53697 is a deficient number, since it is larger than the sum of its proper divisors (28159).

53697 is a wasteful number, since it uses less digits than its factorization.

53697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567.

The product of its digits is 5670, while the sum is 30.

The square root of 53697 is about 231.7261314569. The cubic root of 53697 is about 37.7268032862.

The spelling of 53697 in words is "fifty-three thousand, six hundred ninety-seven".