65744737 has 2 divisors, whose sum is σ = 65744738. Its totient is φ = 65744736.

The previous prime is 65744719. The next prime is 65744743. The reversal of 65744737 is 73744756.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62789776 + 2954961 = 7924^2 + 1719^2 .

It is a cyclic number.

It is not a de Polignac number, because 65744737 - 2²³ = 57356129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65744693 and 65744702.

It is not a weakly prime, because it can be changed into another prime (65744717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32872368 + 32872369.

It is an arithmetic number, because the mean of its divisors is an integer number (32872369).

Almost surely, 2^65744737 is an apocalyptic number.

It is an amenable number.

65744737 is a deficient number, since it is larger than the sum of its proper divisors (1).

65744737 is an equidigital number, since it uses as much as digits as its factorization.

65744737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 493920, while the sum is 43.

The square root of 65744737 is about 8108.3128331361. The cubic root of 65744737 is about 403.6023294181.

It can be divided in two parts, 6574 and 4737, that added together give a palindrome (11311).

The spelling of 65744737 in words is "sixty-five million, seven hundred forty-four thousand, seven hundred thirty-seven".