65284631 has 2 divisors, whose sum is σ = 65284632. Its totient is φ = 65284630.

The previous prime is 65284619. The next prime is 65284633. The reversal of 65284631 is 13648256.

65284631 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-65284631 is a prime.

It is a super-2 number, since 2×65284631² = 8524166089612322, which contains 22 as substring.

Together with 65284633, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 65284591 and 65284600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65284633) 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, 32642315 + 32642316.

It is an arithmetic number, because the mean of its divisors is an integer number (32642316).

Almost surely, 2^65284631 is an apocalyptic number.

65284631 is a deficient number, since it is larger than the sum of its proper divisors (1).

65284631 is an equidigital number, since it uses as much as digits as its factorization.

65284631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 35.

The square root of 65284631 is about 8079.8905314367. The cubic root of 65284631 is about 402.6586049832.

The spelling of 65284631 in words is "sixty-five million, two hundred eighty-four thousand, six hundred thirty-one".