78828253 has 8 divisors (see below), whose sum is σ = 90180608. Its totient is φ = 67498704.

The previous prime is 78828251. The next prime is 78828271. The reversal of 78828253 is 35282887.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78828253 - 2¹ = 78828251 is a prime.

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, 2500 + ... + 12802.

It is an arithmetic number, because the mean of its divisors is an integer number (11272576).

Almost surely, 2^78828253 is an apocalyptic number.

It is an amenable number.

78828253 is a deficient number, since it is larger than the sum of its proper divisors (11352355).

78828253 is a wasteful number, since it uses less digits than its factorization.

78828253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11403.

The product of its digits is 215040, while the sum is 43.

The square root of 78828253 is about 8878.5276369452. The cubic root of 78828253 is about 428.7728723841.

The spelling of 78828253 in words is "seventy-eight million, eight hundred twenty-eight thousand, two hundred fifty-three".