65040799 has 2 divisors, whose sum is σ = 65040800. Its totient is φ = 65040798.

The previous prime is 65040751. The next prime is 65040863. The reversal of 65040799 is 99704056.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65040799 - 2⁷ = 65040671 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65040499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32520399 + 32520400.

It is an arithmetic number, because the mean of its divisors is an integer number (32520400).

Almost surely, 2^65040799 is an apocalyptic number.

65040799 is a deficient number, since it is larger than the sum of its proper divisors (1).

65040799 is an equidigital number, since it uses as much as digits as its factorization.

65040799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 65040799 is about 8064.7875979470. The cubic root of 65040799 is about 402.1566821566.

The spelling of 65040799 in words is "sixty-five million, forty thousand, seven hundred ninety-nine".