65479619 has 2 divisors, whose sum is σ = 65479620. Its totient is φ = 65479618.

The previous prime is 65479607. The next prime is 65479621. The reversal of 65479619 is 91697456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65479619 - 2⁸ = 65479363 is a prime.

It is a super-2 number, since 2×65479619² = 8575161008770322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 65479621, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65479639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32739809 + 32739810.

It is an arithmetic number, because the mean of its divisors is an integer number (32739810).

Almost surely, 2^65479619 is an apocalyptic number.

65479619 is a deficient number, since it is larger than the sum of its proper divisors (1).

65479619 is an equidigital number, since it uses as much as digits as its factorization.

65479619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 47.

The square root of 65479619 is about 8091.9477877703. The cubic root of 65479619 is about 403.0590849422.

The spelling of 65479619 in words is "sixty-five million, four hundred seventy-nine thousand, six hundred nineteen".