65331943 has 2 divisors, whose sum is σ = 65331944. Its totient is φ = 65331942.

The previous prime is 65331923. The next prime is 65331947. The reversal of 65331943 is 34913356.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65331943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65331899 and 65331908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65331947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32665971 + 32665972.

It is an arithmetic number, because the mean of its divisors is an integer number (32665972).

Almost surely, 2^65331943 is an apocalyptic number.

65331943 is a deficient number, since it is larger than the sum of its proper divisors (1).

65331943 is an equidigital number, since it uses as much as digits as its factorization.

65331943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 34.

The square root of 65331943 is about 8082.8177636267. The cubic root of 65331943 is about 402.7558508611.

The spelling of 65331943 in words is "sixty-five million, three hundred thirty-one thousand, nine hundred forty-three".