65872379 has 8 divisors (see below), whose sum is σ = 67207920. Its totient is φ = 64544256.

The previous prime is 65872361. The next prime is 65872381. The reversal of 65872379 is 97327856.

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 65872379 - 2¹⁶ = 65806843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65872579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18227 + ... + 21539.

It is an arithmetic number, because the mean of its divisors is an integer number (8400990).

Almost surely, 2^65872379 is an apocalyptic number.

65872379 is a deficient number, since it is larger than the sum of its proper divisors (1335541).

65872379 is a wasteful number, since it uses less digits than its factorization.

65872379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3709.

The product of its digits is 635040, while the sum is 47.

The square root of 65872379 is about 8116.1800743946. The cubic root of 65872379 is about 403.8633556606.

It can be divided in two parts, 658 and 72379, that added together give a palindrome (73037).

The spelling of 65872379 in words is "sixty-five million, eight hundred seventy-two thousand, three hundred seventy-nine".