65470039 has 4 divisors (see below), whose sum is σ = 65809456. Its totient is φ = 65130624.

The previous prime is 65470021. The next prime is 65470049. The reversal of 65470039 is 93007456.

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 65470039 - 2²¹ = 63372887 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65469986 and 65470013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65470049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169419 + ... + 169804.

It is an arithmetic number, because the mean of its divisors is an integer number (16452364).

Almost surely, 2^65470039 is an apocalyptic number.

65470039 is a deficient number, since it is larger than the sum of its proper divisors (339417).

65470039 is a wasteful number, since it uses less digits than its factorization.

65470039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339416.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 65470039 is about 8091.3558196386. The cubic root of 65470039 is about 403.0394274548.

The spelling of 65470039 in words is "sixty-five million, four hundred seventy thousand, thirty-nine".