65740369 has 4 divisors (see below), whose sum is σ = 66640996. Its totient is φ = 64839744.

The previous prime is 65740331. The next prime is 65740373. The reversal of 65740369 is 96304756.

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

It can be written as a sum of positive squares in 2 ways, for example, as 55577025 + 10163344 = 7455^2 + 3188^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65740369 is a prime.

It is a super-2 number, since 2×65740369² = 8643592232512322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65740069) 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, 450204 + ... + 450349.

It is an arithmetic number, because the mean of its divisors is an integer number (16660249).

Almost surely, 2^65740369 is an apocalyptic number.

It is an amenable number.

65740369 is a deficient number, since it is larger than the sum of its proper divisors (900627).

65740369 is an equidigital number, since it uses as much as digits as its factorization.

65740369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900626.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 65740369 is about 8108.0434754631. The cubic root of 65740369 is about 403.5933909383.

The spelling of 65740369 in words is "sixty-five million, seven hundred forty thousand, three hundred sixty-nine".