78006463 has 4 divisors (see below), whose sum is σ = 78024688. Its totient is φ = 77988240.

The previous prime is 78006451. The next prime is 78006469. The reversal of 78006463 is 36460087.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78006463 - 2⁵ = 78006431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78006469) 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, 1195 + ... + 12547.

It is an arithmetic number, because the mean of its divisors is an integer number (19506172).

Almost surely, 2^78006463 is an apocalyptic number.

78006463 is a deficient number, since it is larger than the sum of its proper divisors (18225).

78006463 is a wasteful number, since it uses less digits than its factorization.

78006463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18224.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 78006463 is about 8832.1267540723. The cubic root of 78006463 is about 427.2776687811.

The spelling of 78006463 in words is "seventy-eight million, six thousand, four hundred sixty-three".