78522963 has 4 divisors (see below), whose sum is σ = 104697288. Its totient is φ = 52348640.

The previous prime is 78522959. The next prime is 78522967. The reversal of 78522963 is 36922587.

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

It is an interprime number because it is at equal distance from previous prime (78522959) and next prime (78522967).

It is a cyclic number.

It is not a de Polignac number, because 78522963 - 2² = 78522959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78522967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13087158 + ... + 13087163.

It is an arithmetic number, because the mean of its divisors is an integer number (26174322).

Almost surely, 2^78522963 is an apocalyptic number.

78522963 is a deficient number, since it is larger than the sum of its proper divisors (26174325).

78522963 is a wasteful number, since it uses less digits than its factorization.

78522963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26174324.

The product of its digits is 181440, while the sum is 42.

The square root of 78522963 is about 8861.3183556399. The cubic root of 78522963 is about 428.2186319301.

The spelling of 78522963 in words is "seventy-eight million, five hundred twenty-two thousand, nine hundred sixty-three".