65709442 has 4 divisors (see below), whose sum is σ = 98564166. Its totient is φ = 32854720.

The previous prime is 65709433. The next prime is 65709443. The reversal of 65709442 is 24490756.

65709442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 40819321 + 24890121 = 6389^2 + 4989^2 .

It is not an unprimeable number, because it can be changed into a prime (65709443) 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 as a sum of consecutive naturals, namely, 16427359 + ... + 16427362.

Almost surely, 2^65709442 is an apocalyptic number.

65709442 is a deficient number, since it is larger than the sum of its proper divisors (32854724).

65709442 is a wasteful number, since it uses less digits than its factorization.

65709442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32854723.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 65709442 is about 8106.1360709033. The cubic root of 65709442 is about 403.5300919798.

The spelling of 65709442 in words is "sixty-five million, seven hundred nine thousand, four hundred forty-two".