65385893 has 4 divisors (see below), whose sum is σ = 69232140. Its totient is φ = 61539648.

The previous prime is 65385889. The next prime is 65385907. The reversal of 65385893 is 39858356.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29181604 + 36204289 = 5402^2 + 6017^2 .

It is a cyclic number.

It is not a de Polignac number, because 65385893 - 2² = 65385889 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 (65385833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1923098 + ... + 1923131.

It is an arithmetic number, because the mean of its divisors is an integer number (17308035).

Almost surely, 2^65385893 is an apocalyptic number.

It is an amenable number.

65385893 is a deficient number, since it is larger than the sum of its proper divisors (3846247).

65385893 is a wasteful number, since it uses less digits than its factorization.

65385893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846246.

The product of its digits is 777600, while the sum is 47.

The square root of 65385893 is about 8086.1544011971. The cubic root of 65385893 is about 402.8666833209.

The spelling of 65385893 in words is "sixty-five million, three hundred eighty-five thousand, eight hundred ninety-three".