78535 has 8 divisors (see below), whose sum is σ = 95760. Its totient is φ = 61824.

The previous prime is 78517. The next prime is 78539. The reversal of 78535 is 53587.

78535 is nontrivially palindromic in base 13.

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 78535 - 2¹¹ = 76487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78539) 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, 496 + ... + 634.

It is an arithmetic number, because the mean of its divisors is an integer number (11970).

2⁷⁸⁵³⁵ is an apocalyptic number.

78535 is a deficient number, since it is larger than the sum of its proper divisors (17225).

78535 is a wasteful number, since it uses less digits than its factorization.

78535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257.

The product of its digits is 4200, while the sum is 28.

The square root of 78535 is about 280.2409677403. The cubic root of 78535 is about 42.8240511748.

It can be divided in two parts, 785 and 35, that added together give a triangular number (820 = T₄₀).

The spelling of 78535 in words is "seventy-eight thousand, five hundred thirty-five".