78535463 has 4 divisors (see below), whose sum is σ = 78583440. Its totient is φ = 78487488.

The previous prime is 78535447. The next prime is 78535477. The reversal of 78535463 is 36453587.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36453587 = 223 ⋅163469.

It is a cyclic number.

It is not a de Polignac number, because 78535463 - 2⁴ = 78535447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78535463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78535433) 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, 21443 + ... + 24836.

It is an arithmetic number, because the mean of its divisors is an integer number (19645860).

Almost surely, 2^78535463 is an apocalyptic number.

78535463 is a deficient number, since it is larger than the sum of its proper divisors (47977).

78535463 is a wasteful number, since it uses less digits than its factorization.

78535463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47976.

The product of its digits is 302400, while the sum is 41.

The square root of 78535463 is about 8862.0236402303. The cubic root of 78535463 is about 428.2413533044.

The spelling of 78535463 in words is "seventy-eight million, five hundred thirty-five thousand, four hundred sixty-three".