78870288 has 40 divisors (see below), whose sum is σ = 232856128. Its totient is φ = 22534272.

The previous prime is 78870283. The next prime is 78870313. The reversal of 78870288 is 88207887.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (78870283) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 117031 + ... + 117702.

Almost surely, 2^78870288 is an apocalyptic number.

It is an amenable number.

78870288 is an abundant number, since it is smaller than the sum of its proper divisors (153985840).

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

78870288 is a wasteful number, since it uses less digits than its factorization.

78870288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234751 (or 234745 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 48.

The square root of 78870288 is about 8880.8945495372. The cubic root of 78870288 is about 428.8490729183.

The spelling of 78870288 in words is "seventy-eight million, eight hundred seventy thousand, two hundred eighty-eight".