78963804 has 18 divisors (see below), whose sum is σ = 199603040. Its totient is φ = 26321256.

The previous prime is 78963803. The next prime is 78963869. The reversal of 78963804 is 40836987.

It is a happy number.

78963804 is a `hidden beast` number, since 7 + 8 + 9 + 638 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 78963804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78963803) 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 5 ways as a sum of consecutive naturals, for example, 1096684 + ... + 1096755.

Almost surely, 2^78963804 is an apocalyptic number.

It is an amenable number.

78963804 is an abundant number, since it is smaller than the sum of its proper divisors (120639236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78963804 is a wasteful number, since it uses less digits than its factorization.

78963804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193449 (or 2193444 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 78963804 is about 8886.1579999458. The cubic root of 78963804 is about 429.0185005144.

The spelling of 78963804 in words is "seventy-eight million, nine hundred sixty-three thousand, eight hundred four".