65291383 has 4 divisors (see below), whose sum is σ = 67542840. Its totient is φ = 63039928.

The previous prime is 65291377. The next prime is 65291399. The reversal of 65291383 is 38319256.

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 65291383 - 2⁵ = 65291351 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 (65291333) 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, 1125685 + ... + 1125742.

It is an arithmetic number, because the mean of its divisors is an integer number (16885710).

Almost surely, 2^65291383 is an apocalyptic number.

65291383 is a deficient number, since it is larger than the sum of its proper divisors (2251457).

65291383 is a wasteful number, since it uses less digits than its factorization.

65291383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251456.

The product of its digits is 38880, while the sum is 37.

The square root of 65291383 is about 8080.3083480768. The cubic root of 65291383 is about 402.6724860307.

The spelling of 65291383 in words is "sixty-five million, two hundred ninety-one thousand, three hundred eighty-three".