65813423 has 8 divisors (see below), whose sum is σ = 70940688. Its totient is φ = 60695424.

The previous prime is 65813411. The next prime is 65813459. The reversal of 65813423 is 32431856.

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 65813423 - 2¹⁸ = 65551279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65813423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65813623) 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, 21815 + ... + 24647.

It is an arithmetic number, because the mean of its divisors is an integer number (8867586).

Almost surely, 2^65813423 is an apocalyptic number.

65813423 is a deficient number, since it is larger than the sum of its proper divisors (5127265).

65813423 is a wasteful number, since it uses less digits than its factorization.

65813423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4633.

The product of its digits is 17280, while the sum is 32.

The square root of 65813423 is about 8112.5472571813. The cubic root of 65813423 is about 403.7428333451.

The spelling of 65813423 in words is "sixty-five million, eight hundred thirteen thousand, four hundred twenty-three".