65276779 has 2 divisors, whose sum is σ = 65276780. Its totient is φ = 65276778.

The previous prime is 65276777. The next prime is 65276789. The reversal of 65276779 is 97767256.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65276779 - 2¹ = 65276777 is a prime.

It is a super-2 number, since 2×65276779² = 8522115753229682, which contains 22 as substring.

Together with 65276777, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65276777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32638389 + 32638390.

It is an arithmetic number, because the mean of its divisors is an integer number (32638390).

Almost surely, 2^65276779 is an apocalyptic number.

65276779 is a deficient number, since it is larger than the sum of its proper divisors (1).

65276779 is an equidigital number, since it uses as much as digits as its factorization.

65276779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1111320, while the sum is 49.

The square root of 65276779 is about 8079.4046191536. The cubic root of 65276779 is about 402.6424613055.

The spelling of 65276779 in words is "sixty-five million, two hundred seventy-six thousand, seven hundred seventy-nine".