78802050 has 48 divisors (see below), whose sum is σ = 198371232. Its totient is φ = 20697600.

The previous prime is 78802039. The next prime is 78802051. The reversal of 78802050 is 5020887.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 78801999 and 78802017.

It is not an unprimeable number, because it can be changed into a prime (78802051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6130 + ... + 13970.

It is an arithmetic number, because the mean of its divisors is an integer number (4132734).

Almost surely, 2^78802050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78802050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99185616).

78802050 is an abundant number, since it is smaller than the sum of its proper divisors (119569182).

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

78802050 is a wasteful number, since it uses less digits than its factorization.

78802050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7923 (or 7918 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 78802050 is about 8877.0518754821. The cubic root of 78802050 is about 428.7253581987.

The spelling of 78802050 in words is "seventy-eight million, eight hundred two thousand, fifty".