65854219 has 2 divisors, whose sum is σ = 65854220. Its totient is φ = 65854218.

The previous prime is 65854213. The next prime is 65854223. The reversal of 65854219 is 91245856.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65854219 - 2³ = 65854211 is a prime.

It is a super-2 number, since 2×65854219² = 8673556320199922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65854211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32927109 + 32927110.

It is an arithmetic number, because the mean of its divisors is an integer number (32927110).

Almost surely, 2^65854219 is an apocalyptic number.

65854219 is a deficient number, since it is larger than the sum of its proper divisors (1).

65854219 is an equidigital number, since it uses as much as digits as its factorization.

65854219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 40.

The square root of 65854219 is about 8115.0612443776. The cubic root of 65854219 is about 403.8262392813.

The spelling of 65854219 in words is "sixty-five million, eight hundred fifty-four thousand, two hundred nineteen".