65380979 has 2 divisors, whose sum is σ = 65380980. Its totient is φ = 65380978.

The previous prime is 65380967. The next prime is 65381047. The reversal of 65380979 is 97908356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65380979 - 2¹⁶ = 65315443 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65380949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32690489 + 32690490.

It is an arithmetic number, because the mean of its divisors is an integer number (32690490).

Almost surely, 2^65380979 is an apocalyptic number.

65380979 is a deficient number, since it is larger than the sum of its proper divisors (1).

65380979 is an equidigital number, since it uses as much as digits as its factorization.

65380979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 65380979 is about 8085.8505427691. The cubic root of 65380979 is about 402.8565907439.

The spelling of 65380979 in words is "sixty-five million, three hundred eighty thousand, nine hundred seventy-nine".