78828254 has 16 divisors (see below), whose sum is σ = 121201920. Its totient is φ = 38439960.

The previous prime is 78828251. The next prime is 78828271. The reversal of 78828254 is 45282887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78828251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10109 + ... + 16119.

It is an arithmetic number, because the mean of its divisors is an integer number (7575120).

Almost surely, 2^78828254 is an apocalyptic number.

78828254 is a deficient number, since it is larger than the sum of its proper divisors (42373666).

78828254 is a wasteful number, since it uses less digits than its factorization.

78828254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6175.

The product of its digits is 286720, while the sum is 44.

The square root of 78828254 is about 8878.5276932609. The cubic root of 78828254 is about 428.7728741972.

The spelling of 78828254 in words is "seventy-eight million, eight hundred twenty-eight thousand, two hundred fifty-four".