65436739 has 2 divisors, whose sum is σ = 65436740. Its totient is φ = 65436738.

The previous prime is 65436659. The next prime is 65436773. The reversal of 65436739 is 93763456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65436739 - 2⁷ = 65436611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65436695 and 65436704.

It is not a weakly prime, because it can be changed into another prime (65436799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32718369 + 32718370.

It is an arithmetic number, because the mean of its divisors is an integer number (32718370).

Almost surely, 2^65436739 is an apocalyptic number.

65436739 is a deficient number, since it is larger than the sum of its proper divisors (1).

65436739 is an equidigital number, since it uses as much as digits as its factorization.

65436739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 43.

The square root of 65436739 is about 8089.2978063612. The cubic root of 65436739 is about 402.9710832714.

The spelling of 65436739 in words is "sixty-five million, four hundred thirty-six thousand, seven hundred thirty-nine".