65279243 has 2 divisors, whose sum is σ = 65279244. Its totient is φ = 65279242.

The previous prime is 65279213. The next prime is 65279323. The reversal of 65279243 is 34297256.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65279243 is a prime.

It is a super-2 number, since 2×65279243² = 8522759133306098, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65279197 and 65279206.

It is not a weakly prime, because it can be changed into another prime (65279213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32639621 + 32639622.

It is an arithmetic number, because the mean of its divisors is an integer number (32639622).

Almost surely, 2^65279243 is an apocalyptic number.

65279243 is a deficient number, since it is larger than the sum of its proper divisors (1).

65279243 is an equidigital number, since it uses as much as digits as its factorization.

65279243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 38.

The square root of 65279243 is about 8079.5571041982. The cubic root of 65279243 is about 402.6475274181.

The spelling of 65279243 in words is "sixty-five million, two hundred seventy-nine thousand, two hundred forty-three".