65753939 has 2 divisors, whose sum is σ = 65753940. Its totient is φ = 65753938.

The previous prime is 65753917. The next prime is 65753951. The reversal of 65753939 is 93935756.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65753939 - 2¹² = 65749843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65753893 and 65753902.

It is not a weakly prime, because it can be changed into another prime (65753239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32876969 + 32876970.

It is an arithmetic number, because the mean of its divisors is an integer number (32876970).

Almost surely, 2^65753939 is an apocalyptic number.

65753939 is a deficient number, since it is larger than the sum of its proper divisors (1).

65753939 is an equidigital number, since it uses as much as digits as its factorization.

65753939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 765450, while the sum is 47.

The square root of 65753939 is about 8108.8802556210. The cubic root of 65753939 is about 403.6211586839.

The spelling of 65753939 in words is "sixty-five million, seven hundred fifty-three thousand, nine hundred thirty-nine".