65073727 has 4 divisors (see below), whose sum is σ = 68498680. Its totient is φ = 61648776.

The previous prime is 65073719. The next prime is 65073731. The reversal of 65073727 is 72737056.

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 65073727 - 2³ = 65073719 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 (65073737) 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, 1712448 + ... + 1712485.

It is an arithmetic number, because the mean of its divisors is an integer number (17124670).

Almost surely, 2^65073727 is an apocalyptic number.

65073727 is a deficient number, since it is larger than the sum of its proper divisors (3424953).

65073727 is a wasteful number, since it uses less digits than its factorization.

65073727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3424952.

The product of its (nonzero) digits is 61740, while the sum is 37.

The square root of 65073727 is about 8066.8288069104. The cubic root of 65073727 is about 402.2245369050.

The spelling of 65073727 in words is "sixty-five million, seventy-three thousand, seven hundred twenty-seven".