65650739 has 18 divisors (see below), whose sum is σ = 83551284. Its totient is φ = 51009840.

The previous prime is 65650733. The next prime is 65650769. The reversal of 65650739 is 93705656.

65650739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65650739 - 2¹² = 65646643 is a prime.

It is a super-2 number, since 2×65650739² = 8620039062492242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65650696 and 65650705.

It is not an unprimeable number, because it can be changed into a prime (65650733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 187937 + ... + 188285.

It is an arithmetic number, because the mean of its divisors is an integer number (4641738).

Almost surely, 2^65650739 is an apocalyptic number.

65650739 is a deficient number, since it is larger than the sum of its proper divisors (17900545).

65650739 is an equidigital number, since it uses as much as digits as its factorization.

65650739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 41.

The square root of 65650739 is about 8102.5143628382. The cubic root of 65650739 is about 403.4098886323.

The spelling of 65650739 in words is "sixty-five million, six hundred fifty thousand, seven hundred thirty-nine".