65739673 has 2 divisors, whose sum is σ = 65739674. Its totient is φ = 65739672.

The previous prime is 65739659. The next prime is 65739679. The reversal of 65739673 is 37693756.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65739664 + 9 = 8108^2 + 3^2 .

It is a cyclic number.

It is not a de Polignac number, because 65739673 - 2⁹ = 65739161 is a prime.

It is a super-2 number, since 2×65739673² = 8643409212293858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65739679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32869836 + 32869837.

It is an arithmetic number, because the mean of its divisors is an integer number (32869837).

Almost surely, 2^65739673 is an apocalyptic number.

It is an amenable number.

65739673 is a deficient number, since it is larger than the sum of its proper divisors (1).

65739673 is an equidigital number, since it uses as much as digits as its factorization.

65739673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 714420, while the sum is 46.

The square root of 65739673 is about 8108.0005550074. Note that the first 3 decimals coincide. The cubic root of 65739673 is about 403.5919666384.

The spelling of 65739673 in words is "sixty-five million, seven hundred thirty-nine thousand, six hundred seventy-three".