65737723 has 2 divisors, whose sum is σ = 65737724. Its totient is φ = 65737722.

The previous prime is 65737709. The next prime is 65737729. The reversal of 65737723 is 32773756.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65737723 - 2⁹ = 65737211 is a prime.

It is not a weakly prime, because it can be changed into another prime (65737729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32868861 + 32868862.

It is an arithmetic number, because the mean of its divisors is an integer number (32868862).

Almost surely, 2^65737723 is an apocalyptic number.

65737723 is a deficient number, since it is larger than the sum of its proper divisors (1).

65737723 is an equidigital number, since it uses as much as digits as its factorization.

65737723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 185220, while the sum is 40.

The square root of 65737723 is about 8107.8803025205. The cubic root of 65737723 is about 403.5879760896.

The spelling of 65737723 in words is "sixty-five million, seven hundred thirty-seven thousand, seven hundred twenty-three".