65874749 has 2 divisors, whose sum is σ = 65874750. Its totient is φ = 65874748.

The previous prime is 65874733. The next prime is 65874793. The reversal of 65874749 is 94747856.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65205625 + 669124 = 8075^2 + 818^2 .

It is a cyclic number.

It is not a de Polignac number, because 65874749 - 2⁴ = 65874733 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 65874697 and 65874706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65874709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32937374 + 32937375.

It is an arithmetic number, because the mean of its divisors is an integer number (32937375).

Almost surely, 2^65874749 is an apocalyptic number.

It is an amenable number.

65874749 is a deficient number, since it is larger than the sum of its proper divisors (1).

65874749 is an equidigital number, since it uses as much as digits as its factorization.

65874749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 50.

The square root of 65874749 is about 8116.3260777275. The cubic root of 65874749 is about 403.8681990901.

The spelling of 65874749 in words is "sixty-five million, eight hundred seventy-four thousand, seven hundred forty-nine".