65424427 has 2 divisors, whose sum is σ = 65424428. Its totient is φ = 65424426.

The previous prime is 65424407. The next prime is 65424433. The reversal of 65424427 is 72442456.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65424427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65424392 and 65424401.

It is not a weakly prime, because it can be changed into another prime (65424407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32712213 + 32712214.

It is an arithmetic number, because the mean of its divisors is an integer number (32712214).

Almost surely, 2^65424427 is an apocalyptic number.

65424427 is a deficient number, since it is larger than the sum of its proper divisors (1).

65424427 is an equidigital number, since it uses as much as digits as its factorization.

65424427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 34.

The square root of 65424427 is about 8088.5367650769. The cubic root of 65424427 is about 402.9458085239.

The spelling of 65424427 in words is "sixty-five million, four hundred twenty-four thousand, four hundred twenty-seven".