78828358 has 12 divisors (see below), whose sum is σ = 137547612. Its totient is φ = 33783540.

The previous prime is 78828349. The next prime is 78828367. The reversal of 78828358 is 85382887.

It is an interprime number because it is at equal distance from previous prime (78828349) and next prime (78828367).

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

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, 402088 + ... + 402283.

It is an arithmetic number, because the mean of its divisors is an integer number (11462301).

Almost surely, 2^78828358 is an apocalyptic number.

78828358 is a deficient number, since it is larger than the sum of its proper divisors (58719254).

78828358 is a wasteful number, since it uses less digits than its factorization.

78828358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804387 (or 804380 counting only the distinct ones).

The product of its digits is 860160, while the sum is 49.

The square root of 78828358 is about 8878.5335500858. The cubic root of 78828358 is about 428.7730627605.

The spelling of 78828358 in words is "seventy-eight million, eight hundred twenty-eight thousand, three hundred fifty-eight".