65070439 has 4 divisors (see below), whose sum is σ = 74366224. Its totient is φ = 55774656.

The previous prime is 65070433. The next prime is 65070449. The reversal of 65070439 is 93407056.

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

It is not a de Polignac number, because 65070439 - 2³ = 65070431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65070431) 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, 4647882 + ... + 4647895.

It is an arithmetic number, because the mean of its divisors is an integer number (18591556).

Almost surely, 2^65070439 is an apocalyptic number.

65070439 is a deficient number, since it is larger than the sum of its proper divisors (9295785).

65070439 is an equidigital number, since it uses as much as digits as its factorization.

65070439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9295784.

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

The square root of 65070439 is about 8066.6250067795. The cubic root of 65070439 is about 402.2177623504.

The spelling of 65070439 in words is "sixty-five million, seventy thousand, four hundred thirty-nine".