65394443 has 4 divisors (see below), whose sum is σ = 66915288. Its totient is φ = 63873600.

The previous prime is 65394431. The next prime is 65394481. The reversal of 65394443 is 34449356.

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 65394443 - 2¹⁴ = 65378059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65394397 and 65394406.

It is not an unprimeable number, because it can be changed into a prime (65394643) 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, 760358 + ... + 760443.

It is an arithmetic number, because the mean of its divisors is an integer number (16728822).

Almost surely, 2^65394443 is an apocalyptic number.

65394443 is a deficient number, since it is larger than the sum of its proper divisors (1520845).

65394443 is a wasteful number, since it uses less digits than its factorization.

65394443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520844.

The product of its digits is 155520, while the sum is 38.

The square root of 65394443 is about 8086.6830653860. The cubic root of 65394443 is about 402.8842424603.

The spelling of 65394443 in words is "sixty-five million, three hundred ninety-four thousand, four hundred forty-three".