65278627 has 2 divisors, whose sum is σ = 65278628. Its totient is φ = 65278626.

The previous prime is 65278613. The next prime is 65278637. The reversal of 65278627 is 72687256.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65278627 is a prime.

It is a super-2 number, since 2×65278627² = 8522598286010258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65278637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32639313 + 32639314.

It is an arithmetic number, because the mean of its divisors is an integer number (32639314).

Almost surely, 2^65278627 is an apocalyptic number.

65278627 is a deficient number, since it is larger than the sum of its proper divisors (1).

65278627 is an equidigital number, since it uses as much as digits as its factorization.

65278627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 43.

The square root of 65278627 is about 8079.5189832069. The cubic root of 65278627 is about 402.6462609019.

The spelling of 65278627 in words is "sixty-five million, two hundred seventy-eight thousand, six hundred twenty-seven".