78802 has 12 divisors (see below), whose sum is σ = 125118. Its totient is φ = 37200.

The previous prime is 78797. The next prime is 78803. The reversal of 78802 is 20887.

It can be written as a sum of positive squares in only one way, i.e., 77841 + 961 = 279^2 + 31^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (78803) by changing a digit.

78802 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1902 + ... + 1942.

2⁷⁸⁸⁰² is an apocalyptic number.

78802 is a deficient number, since it is larger than the sum of its proper divisors (46316).

78802 is a wasteful number, since it uses less digits than its factorization.

78802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 78802 is about 280.7169392823. The cubic root of 78802 is about 42.8725267523.

The spelling of 78802 in words is "seventy-eight thousand, eight hundred two".