65740783 has 2 divisors, whose sum is σ = 65740784. Its totient is φ = 65740782.

The previous prime is 65740777. The next prime is 65740813. The reversal of 65740783 is 38704756.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65740783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65740183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32870391 + 32870392.

It is an arithmetic number, because the mean of its divisors is an integer number (32870392).

Almost surely, 2^65740783 is an apocalyptic number.

65740783 is a deficient number, since it is larger than the sum of its proper divisors (1).

65740783 is an equidigital number, since it uses as much as digits as its factorization.

65740783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 65740783 is about 8108.0690056264. The cubic root of 65740783 is about 403.5942381463.

The spelling of 65740783 in words is "sixty-five million, seven hundred forty thousand, seven hundred eighty-three".