65211079 has 2 divisors, whose sum is σ = 65211080. Its totient is φ = 65211078.

The previous prime is 65211077. The next prime is 65211109. The reversal of 65211079 is 97011256.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65211079 - 2¹ = 65211077 is a prime.

Together with 65211077, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 65211079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65211077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32605539 + 32605540.

It is an arithmetic number, because the mean of its divisors is an integer number (32605540).

Almost surely, 2^65211079 is an apocalyptic number.

65211079 is a deficient number, since it is larger than the sum of its proper divisors (1).

65211079 is an equidigital number, since it uses as much as digits as its factorization.

65211079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 65211079 is about 8075.3377019169. The cubic root of 65211079 is about 402.5073316309.

The spelling of 65211079 in words is "sixty-five million, two hundred eleven thousand, seventy-nine".