65314421 has 2 divisors, whose sum is σ = 65314422. Its totient is φ = 65314420.

The previous prime is 65314399. The next prime is 65314439. The reversal of 65314421 is 12441356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64625521 + 688900 = 8039^2 + 830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65314421 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 (65314451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32657210 + 32657211.

It is an arithmetic number, because the mean of its divisors is an integer number (32657211).

Almost surely, 2^65314421 is an apocalyptic number.

It is an amenable number.

65314421 is a deficient number, since it is larger than the sum of its proper divisors (1).

65314421 is an equidigital number, since it uses as much as digits as its factorization.

65314421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 26.

The square root of 65314421 is about 8081.7337867564. The cubic root of 65314421 is about 402.7198413243.

Adding to 65314421 its reverse (12441356), we get a palindrome (77755777).

The spelling of 65314421 in words is "sixty-five million, three hundred fourteen thousand, four hundred twenty-one".