65726037 has 12 divisors (see below), whose sum is σ = 102240684. Its totient is φ = 40446720.

The previous prime is 65726033. The next prime is 65726057. The reversal of 65726037 is 73062756.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 35354916 + 30371121 = 5946^2 + 5511^2 .

It is not a de Polignac number, because 65726037 - 2² = 65726033 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 65725992 and 65726010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65726033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280764 + ... + 280997.

It is an arithmetic number, because the mean of its divisors is an integer number (8520057).

Almost surely, 2^65726037 is an apocalyptic number.

It is an amenable number.

65726037 is a deficient number, since it is larger than the sum of its proper divisors (36514647).

65726037 is a wasteful number, since it uses less digits than its factorization.

65726037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561780 (or 561777 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 65726037 is about 8107.1596135761. The cubic root of 65726037 is about 403.5640597933.

The spelling of 65726037 in words is "sixty-five million, seven hundred twenty-six thousand, thirty-seven".