65064039 has 4 divisors (see below), whose sum is σ = 86752056. Its totient is φ = 43376024.

The previous prime is 65064017. The next prime is 65064047. The reversal of 65064039 is 93046056.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 65064039 - 2¹³ = 65055847 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65064059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10844004 + ... + 10844009.

It is an arithmetic number, because the mean of its divisors is an integer number (21688014).

Almost surely, 2^65064039 is an apocalyptic number.

65064039 is a deficient number, since it is larger than the sum of its proper divisors (21688017).

65064039 is a wasteful number, since it uses less digits than its factorization.

65064039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21688016.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 65064039 is about 8066.2283007611. The cubic root of 65064039 is about 402.2045752149.

The spelling of 65064039 in words is "sixty-five million, sixty-four thousand, thirty-nine".