65064943 has 4 divisors (see below), whose sum is σ = 65122528. Its totient is φ = 65007360.

The previous prime is 65064941. The next prime is 65064959. The reversal of 65064943 is 34946056.

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 65064943 - 2¹ = 65064941 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 (65064941) 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, 27063 + ... + 29368.

It is an arithmetic number, because the mean of its divisors is an integer number (16280632).

Almost surely, 2^65064943 is an apocalyptic number.

65064943 is a deficient number, since it is larger than the sum of its proper divisors (57585).

65064943 is a wasteful number, since it uses less digits than its factorization.

65064943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57584.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 65064943 is about 8066.2843366695. The cubic root of 65064943 is about 402.2064379503.

It can be divided in two parts, 6506 and 4943, that added together give a square (11449 = 107²).

The spelling of 65064943 in words is "sixty-five million, sixty-four thousand, nine hundred forty-three".