65493797 has 2 divisors, whose sum is σ = 65493798. Its totient is φ = 65493796.

The previous prime is 65493781. The next prime is 65493823. The reversal of 65493797 is 79739456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37625956 + 27867841 = 6134^2 + 5279^2 .

It is a cyclic number.

It is not a de Polignac number, because 65493797 - 2⁴ = 65493781 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 (65493097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32746898 + 32746899.

It is an arithmetic number, because the mean of its divisors is an integer number (32746899).

Almost surely, 2^65493797 is an apocalyptic number.

It is an amenable number.

65493797 is a deficient number, since it is larger than the sum of its proper divisors (1).

65493797 is an equidigital number, since it uses as much as digits as its factorization.

65493797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1428840, while the sum is 50.

The square root of 65493797 is about 8092.8237964261. The cubic root of 65493797 is about 403.0881736846.

The spelling of 65493797 in words is "sixty-five million, four hundred ninety-three thousand, seven hundred ninety-seven".