65957863 has 8 divisors (see below), whose sum is σ = 68579840. Its totient is φ = 63366840.

The previous prime is 65957851. The next prime is 65957867. The reversal of 65957863 is 36875956.

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

It is a cyclic number.

It is not a de Polignac number, because 65957863 - 2¹⁷ = 65826791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65957867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3345 + ... + 11962.

It is an arithmetic number, because the mean of its divisors is an integer number (8572480).

Almost surely, 2^65957863 is an apocalyptic number.

65957863 is a deficient number, since it is larger than the sum of its proper divisors (2621977).

65957863 is a wasteful number, since it uses less digits than its factorization.

65957863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15477.

The product of its digits is 1360800, while the sum is 49.

The square root of 65957863 is about 8121.4446375014. Note that the first 3 decimals coincide. The cubic root of 65957863 is about 404.0379808589.

The spelling of 65957863 in words is "sixty-five million, nine hundred fifty-seven thousand, eight hundred sixty-three".