78075210 has 16 divisors (see below), whose sum is σ = 187380576. Its totient is φ = 20820048.

The previous prime is 78075209. The next prime is 78075223. The reversal of 78075210 is 1257087.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2602507 = 78075210 / (7 + 8 + 0 + 7 + 5 + 2 + 1 + 0).

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 7 ways as a sum of consecutive naturals, for example, 1301224 + ... + 1301283.

It is an arithmetic number, because the mean of its divisors is an integer number (11711286).

Almost surely, 2^78075210 is an apocalyptic number.

78075210 is an abundant number, since it is smaller than the sum of its proper divisors (109305366).

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

78075210 is a wasteful number, since it uses less digits than its factorization.

78075210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602517.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 78075210 is about 8836.0177682030. The cubic root of 78075210 is about 427.4031516872.

The spelling of 78075210 in words is "seventy-eight million, seventy-five thousand, two hundred ten".