65914391 has 2 divisors, whose sum is σ = 65914392. Its totient is φ = 65914390.

The previous prime is 65914349. The next prime is 65914403. The reversal of 65914391 is 19341956.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65914391 - 2⁶ = 65914327 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65917391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32957195 + 32957196.

It is an arithmetic number, because the mean of its divisors is an integer number (32957196).

Almost surely, 2^65914391 is an apocalyptic number.

65914391 is a deficient number, since it is larger than the sum of its proper divisors (1).

65914391 is an equidigital number, since it uses as much as digits as its factorization.

65914391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 38.

The square root of 65914391 is about 8118.7678252306. The cubic root of 65914391 is about 403.9491958956.

The spelling of 65914391 in words is "sixty-five million, nine hundred fourteen thousand, three hundred ninety-one".