65536943 has 8 divisors (see below), whose sum is σ = 66488448. Its totient is φ = 64591704.

The previous prime is 65536937. The next prime is 65536957. The reversal of 65536943 is 34963556.

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 65536943 - 2¹⁶ = 65471407 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65536943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65536903) 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, 21980 + ... + 24782.

It is an arithmetic number, because the mean of its divisors is an integer number (8311056).

Almost surely, 2^65536943 is an apocalyptic number.

65536943 is a deficient number, since it is larger than the sum of its proper divisors (951505).

65536943 is a wasteful number, since it uses less digits than its factorization.

65536943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133.

The product of its digits is 291600, while the sum is 41.

The square root of 65536943 is about 8095.4890525527. The cubic root of 65536943 is about 403.1766697226.

The spelling of 65536943 in words is "sixty-five million, five hundred thirty-six thousand, nine hundred forty-three".