65387793 has 4 divisors (see below), whose sum is σ = 87183728. Its totient is φ = 43591860.

The previous prime is 65387767. The next prime is 65387801. The reversal of 65387793 is 39778356.

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 not a de Polignac number, because 65387793 - 2⁸ = 65387537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65387723) 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, 10897963 + ... + 10897968.

It is an arithmetic number, because the mean of its divisors is an integer number (21795932).

Almost surely, 2^65387793 is an apocalyptic number.

It is an amenable number.

65387793 is a deficient number, since it is larger than the sum of its proper divisors (21795935).

65387793 is a wasteful number, since it uses less digits than its factorization.

65387793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21795934.

The product of its digits is 952560, while the sum is 48.

The square root of 65387793 is about 8086.2718851149. The cubic root of 65387793 is about 402.8705854842.

The spelling of 65387793 in words is "sixty-five million, three hundred eighty-seven thousand, seven hundred ninety-three".