78756063 has 16 divisors (see below), whose sum is σ = 107811552. Its totient is φ = 51120000.

The previous prime is 78756059. The next prime is 78756103. The reversal of 78756063 is 36065787.

It is not a de Polignac number, because 78756063 - 2² = 78756059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78756863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16353 + ... + 20613.

It is an arithmetic number, because the mean of its divisors is an integer number (6738222).

Almost surely, 2^78756063 is an apocalyptic number.

78756063 is a deficient number, since it is larger than the sum of its proper divisors (29055489).

78756063 is a wasteful number, since it uses less digits than its factorization.

78756063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4426.

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 78756063 is about 8874.4612794242. The cubic root of 78756063 is about 428.6419440002.

The spelling of 78756063 in words is "seventy-eight million, seven hundred fifty-six thousand, sixty-three".