65693331 has 12 divisors (see below), whose sum is σ = 103516920. Its totient is φ = 39814080.

The previous prime is 65693311. The next prime is 65693333. The reversal of 65693331 is 13339656.

It is not a de Polignac number, because 65693331 - 2¹⁰ = 65692307 is a prime.

It is a super-2 number, since 2×65693331² = 8631227475751122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65693333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 331686 + ... + 331883.

It is an arithmetic number, because the mean of its divisors is an integer number (8626410).

Almost surely, 2^65693331 is an apocalyptic number.

65693331 is a deficient number, since it is larger than the sum of its proper divisors (37823589).

65693331 is a wasteful number, since it uses less digits than its factorization.

65693331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663586 (or 663583 counting only the distinct ones).

The product of its digits is 43740, while the sum is 36.

The square root of 65693331 is about 8105.1422566171. The cubic root of 65693331 is about 403.4971093798.

It can be divided in two parts, 65 and 693331, that added together give a palindrome (693396).

The spelling of 65693331 in words is "sixty-five million, six hundred ninety-three thousand, three hundred thirty-one".