65705773 has 8 divisors (see below), whose sum is σ = 75195648. Its totient is φ = 56241744.

The previous prime is 65705753. The next prime is 65705791. The reversal of 65705773 is 37750756.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65705773 - 2⁹ = 65705261 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 (65705713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661 + ... + 11482.

It is an arithmetic number, because the mean of its divisors is an integer number (9399456).

Almost surely, 2^65705773 is an apocalyptic number.

It is an amenable number.

65705773 is a deficient number, since it is larger than the sum of its proper divisors (9489875).

65705773 is a wasteful number, since it uses less digits than its factorization.

65705773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12923.

The product of its (nonzero) digits is 154350, while the sum is 40.

The square root of 65705773 is about 8105.9097577015. The cubic root of 65705773 is about 403.5225812405.

The spelling of 65705773 in words is "sixty-five million, seven hundred five thousand, seven hundred seventy-three".