65986338 has 32 divisors (see below), whose sum is σ = 147324672. Its totient is φ = 19530000.

The previous prime is 65986337. The next prime is 65986391. The reversal of 65986338 is 83368956.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65986337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8788 + ... + 14463.

It is an arithmetic number, because the mean of its divisors is an integer number (4603896).

Almost surely, 2^65986338 is an apocalyptic number.

65986338 is an abundant number, since it is smaller than the sum of its proper divisors (81338334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65986338 is a wasteful number, since it uses less digits than its factorization.

65986338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23310.

The product of its digits is 933120, while the sum is 48.

The square root of 65986338 is about 8123.1975231432. The cubic root of 65986338 is about 404.0961155818.

The spelling of 65986338 in words is "sixty-five million, nine hundred eighty-six thousand, three hundred thirty-eight".