65426947 has 2 divisors, whose sum is σ = 65426948. Its totient is φ = 65426946.

The previous prime is 65426909. The next prime is 65426981. The reversal of 65426947 is 74962456.

It is a happy number.

65426947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65426947 is a prime.

It is not a weakly prime, because it can be changed into another prime (65426147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32713473 + 32713474.

It is an arithmetic number, because the mean of its divisors is an integer number (32713474).

Almost surely, 2^65426947 is an apocalyptic number.

65426947 is a deficient number, since it is larger than the sum of its proper divisors (1).

65426947 is an equidigital number, since it uses as much as digits as its factorization.

65426947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 43.

The square root of 65426947 is about 8088.6925395888. The cubic root of 65426947 is about 402.9509819759.

The spelling of 65426947 in words is "sixty-five million, four hundred twenty-six thousand, nine hundred forty-seven".