65318723 has 8 divisors (see below), whose sum is σ = 66918960. Its totient is φ = 63735040.

The previous prime is 65318683. The next prime is 65318749. The reversal of 65318723 is 32781356.

It is a Cunningham number, because it is equal to 8082²-1.

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 65318723 - 2⁸ = 65318467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65318423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4043 + ... + 12123.

It is an arithmetic number, because the mean of its divisors is an integer number (8364870).

Almost surely, 2^65318723 is an apocalyptic number.

65318723 is a deficient number, since it is larger than the sum of its proper divisors (1600237).

65318723 is a wasteful number, since it uses less digits than its factorization.

65318723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8277.

The product of its digits is 30240, while the sum is 35.

The square root of 65318723 is about 8081.9999381341. Note that the first 4 decimals coincide. The cubic root of 65318723 is about 402.7286829793.

The spelling of 65318723 in words is "sixty-five million, three hundred eighteen thousand, seven hundred twenty-three".