65448431 has 2 divisors, whose sum is σ = 65448432. Its totient is φ = 65448430.

The previous prime is 65448403. The next prime is 65448437. The reversal of 65448431 is 13484456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65448431 - 2⁶ = 65448367 is a prime.

It is a super-2 number, since 2×65448431² = 8566994240723522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 65448391 and 65448400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65448437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32724215 + 32724216.

It is an arithmetic number, because the mean of its divisors is an integer number (32724216).

Almost surely, 2^65448431 is an apocalyptic number.

65448431 is a deficient number, since it is larger than the sum of its proper divisors (1).

65448431 is an equidigital number, since it uses as much as digits as its factorization.

65448431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 35.

The square root of 65448431 is about 8090.0204573289. The cubic root of 65448431 is about 402.9950823143.

The spelling of 65448431 in words is "sixty-five million, four hundred forty-eight thousand, four hundred thirty-one".