78908363 has 4 divisors (see below), whose sum is σ = 78927288. Its totient is φ = 78889440.

The previous prime is 78908329. The next prime is 78908369. The reversal of 78908363 is 36380987.

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 78908363 - 2¹⁸ = 78646219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78908369) 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, 158 + ... + 12563.

It is an arithmetic number, because the mean of its divisors is an integer number (19731822).

Almost surely, 2^78908363 is an apocalyptic number.

78908363 is a deficient number, since it is larger than the sum of its proper divisors (18925).

78908363 is a wasteful number, since it uses less digits than its factorization.

78908363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18924.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 78908363 is about 8883.0379375527. The cubic root of 78908363 is about 428.9180714476.

The spelling of 78908363 in words is "seventy-eight million, nine hundred eight thousand, three hundred sixty-three".