65712419 has 2 divisors, whose sum is σ = 65712420. Its totient is φ = 65712418.

The previous prime is 65712397. The next prime is 65712443. The reversal of 65712419 is 91421756.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65712419 - 2¹⁶ = 65646883 is a prime.

It is a super-2 number, since 2×65712419² = 8636244021663122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65712719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32856209 + 32856210.

It is an arithmetic number, because the mean of its divisors is an integer number (32856210).

Almost surely, 2^65712419 is an apocalyptic number.

65712419 is a deficient number, since it is larger than the sum of its proper divisors (1).

65712419 is an equidigital number, since it uses as much as digits as its factorization.

65712419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 35.

The square root of 65712419 is about 8106.3196951514. The cubic root of 65712419 is about 403.5361859338.

The spelling of 65712419 in words is "sixty-five million, seven hundred twelve thousand, four hundred nineteen".