65396866 has 16 divisors (see below), whose sum is σ = 102985344. Its totient is φ = 31085824.

The previous prime is 65396861. The next prime is 65396869. The reversal of 65396866 is 66869356.

It is not an unprimeable number, because it can be changed into a prime (65396861) 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, 3426 + ... + 11938.

It is an arithmetic number, because the mean of its divisors is an integer number (6436584).

Almost surely, 2^65396866 is an apocalyptic number.

65396866 is a deficient number, since it is larger than the sum of its proper divisors (37588478).

65396866 is a wasteful number, since it uses less digits than its factorization.

65396866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8705.

The product of its digits is 1399680, while the sum is 49.

The square root of 65396866 is about 8086.8328782039. The cubic root of 65396866 is about 402.8892182983.

The spelling of 65396866 in words is "sixty-five million, three hundred ninety-six thousand, eight hundred sixty-six".