65993386 has 8 divisors (see below), whose sum is σ = 102403620. Its totient is φ = 31858848.

The previous prime is 65993381. The next prime is 65993401. The reversal of 65993386 is 68339956.

It can be written as a sum of positive squares in 2 ways, for example, as 59768361 + 6225025 = 7731^2 + 2495^2 .

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

It is not an unprimeable number, because it can be changed into a prime (65993381) 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, 568851 + ... + 568966.

Almost surely, 2^65993386 is an apocalyptic number.

65993386 is a deficient number, since it is larger than the sum of its proper divisors (36410234).

65993386 is a wasteful number, since it uses less digits than its factorization.

65993386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137848.

The product of its digits is 1049760, while the sum is 49.

The square root of 65993386 is about 8123.6313308766. The cubic root of 65993386 is about 404.1105022368.

The spelling of 65993386 in words is "sixty-five million, nine hundred ninety-three thousand, three hundred eighty-six".