65493793 has 4 divisors (see below), whose sum is σ = 67606528. Its totient is φ = 63381060.

The previous prime is 65493781. The next prime is 65493797. The reversal of 65493793 is 39739456.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65493793 - 2⁵ = 65493761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65493797) 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, 1056321 + ... + 1056382.

It is an arithmetic number, because the mean of its divisors is an integer number (16901632).

Almost surely, 2^65493793 is an apocalyptic number.

It is an amenable number.

65493793 is a deficient number, since it is larger than the sum of its proper divisors (2112735).

65493793 is a wasteful number, since it uses less digits than its factorization.

65493793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112734.

The product of its digits is 612360, while the sum is 46.

The square root of 65493793 is about 8092.8235492935. The cubic root of 65493793 is about 403.0881654785.

The spelling of 65493793 in words is "sixty-five million, four hundred ninety-three thousand, seven hundred ninety-three".