65749351 has 4 divisors (see below), whose sum is σ = 68016600. Its totient is φ = 63482104.

The previous prime is 65749303. The next prime is 65749391. The reversal of 65749351 is 15394756.

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

It is a cyclic number.

It is not a de Polignac number, because 65749351 - 2¹¹ = 65747303 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65749301) 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, 1133581 + ... + 1133638.

It is an arithmetic number, because the mean of its divisors is an integer number (17004150).

Almost surely, 2^65749351 is an apocalyptic number.

65749351 is a deficient number, since it is larger than the sum of its proper divisors (2267249).

65749351 is a wasteful number, since it uses less digits than its factorization.

65749351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267248.

The product of its digits is 113400, while the sum is 40.

The square root of 65749351 is about 8108.5973509603. The cubic root of 65749351 is about 403.6117708714.

The spelling of 65749351 in words is "sixty-five million, seven hundred forty-nine thousand, three hundred fifty-one".